In the summer of 1996, I picked up a little green Gideon New Testament and began reading the gospels. At the time I was searching to see if perhaps Jesus would be the help I needed in my personal quest to leave the street gang life, overcome my dependency on illicit drug use, and establish a relationship with God. The experience had a radical impact on my hope of what was possible in my life, that I could be other than what I was, and how I could be reborn into the kingdom of God. A few days after Christmas day, I committed my life to following Jesus. In that nascent period of my emerging faith, I relied on the gospels to “tell me the story of Jesus.”

Since that time, I have immersed myself in the study of the gospels for faith and for hope, for truth, and for the renewing power of the historic Jesus who is the Christ of my faith. However, in that same period, it became clear to me that a number of sources (academic and popular) questioned the historical reliability of the Gospels (and the Bible). In this present paper, I affirm their reliability in a cumulative case, based on seven good arguments that make it more probable than not that the Gospels are historically reliable.[1]

The case will be divided into three categorical units.[2] I begin with four “ground-clearing” arguments to resolve important front-end misgivings regarding the reliability of the gospels. Second, I argue how four compositional conventions demonstrate a remarkably stable environment for writing ancient biographies of a recent figure within living memory. Then, I show how three historical features of the Gospels affirm their reliability. Finally, I offer a summation of what this abbreviated cumulative case affirms regarding the historical reliability of the Gospels.

Cumulative Argument for Reliability

There are two aspects of the present cumulative case for the reliability of the Gospels to consider before moving forward: the method and the goal. The method of a cumulative case is to use a series of individual arguments that are “less than sufficient” to bear the whole burden of a case by themselves, but together argue a compelling case that is reasonable. Former cold case detective, J. Warner Wallace, says it helps others to “see the forest for the trees.”[3] If the overlapping nature of the arguments makes for a reasonable argument, then the goal is to demonstrate that the cumulative case is more probable than the alternatives.

As an illustration, consider the colloquial commonsense argument: “If it walks like a duck, quacks like a duck, has a bill like a duck, then it is a duck.” These three arguments form a cumulative case that the “bird” is a duck. With this admittedly limited illustration, I point to the commonsense nature of overlapping lines of reasons and evidence, of varying weight, together to offer a big-picture argument.

Presently, then, the seven arguments below overlap to argue positively that it is reasonable and more probable (not just plausible) than not the Gospels are in general historically reliable as an ancient historical biography of a recent religious teacher (Jesus) within the living memory of his disciples. This is a threshold argument. Do the gospels crossover to the category of historically reliable? This is significant since the Gospels are our best available source for any historical picture of Jesus of Nazareth.[4]

Ground Clearing Arguments

The following arguments are treated as “ground-clearing” lines of evidence as they address “front-end” matters of reliability.[5] What extant sources are available for knowledge of Jesus? Has the text of the Gospels been preserved and reliably transmitted? Even if the textual tradition is adequate, are the translations reliable? How early are these Gospels and who wrote them? These are important questions that must be given consideration due to so many misgivings about them in popular circles.[6]

Ancient Sources for Jesus

In the first place, what sources exist to know that Jesus existed and what he said and did? Apart from the Gospels, there is a cache of early ancient non-Christian, often hostile, testimony about Jesus available from Graeco-Roman, Jewish, later Christian, and heretical and apocryphal literature within the first one hundred years.[7] The composite picture of what is known of Jesus from these sources remarkably corroborates with what is found in the four Gospel accounts: Jesus was a Jewish itinerant, miracle-working rabbi in the Roman province of Judea, who many believed was the Messiah; but he was executed under Pontius Pilate during the reign of Tiberius Caesar; his disciples believed he resurrected spreading this belief throughout the Rome. The Gospels remain the best sources for Jesus, but corroboration of their portrayal of Jesus with ancient non-Christian sources is a necessary starting place.

Reliable Transmission

Additionally, skeptic Richard Carrier, a historian of ancient Rome, lists “textual analysis” as the first stage of historical inquiry.[8] This second ground-clearing argument asserts the Gospels pass the “bibliographical test” as part of the reliable transmission of the Greek New Testament from the ancient text to the modern reader.[9] New Testament textual criticism can evaluate, detect, and correct textual corruptions due to the access of textual critics to over 5,800 Greek manuscripts, early ancient translations, and early church quotations.[10] There are two significant variants in the gospels which involve an entire passage (Mark 16:9–20; John 7:53–8:11), but these are the exception. According to Blomberg, we have “upwards of 97% of what the original writers wrote reconstructed beyond any reasonable doubt,” and the remaining 3% affects no Christian doctrine.[11] As an ancient, hand-copied group of books, the Gospels have been reliably transmitted.

Reliable English Translations

As a third argument, standard English Bible translations are sufficiently reliable for the purpose of knowing the deeds, sayings, and passion of Jesus in the Gospels. Translation is the work of transferring the meaning and ideas of words from one language into the language of a receptor language. Biblical scholar Philip W. Comfort notes that a translation “must reliably replicate the meaning of the text without sacrificing its readability.”[12] In translation theory, there are formal equivalence (“word for word”) translations (ESV, NASB), and there are dynamic equivalence (“thought for thought”) translations (NLT, CEB).[13] Additionally, there are optimal equivalence translations that seek an ideal blend of formal and dynamic methods (CSB, NIV).[14] No translation is perfect, but they typically succeed in producing a “reliable and readable” English text.

First-Century Documents

Finally, the Gospels are first-century biographical documents. Although the traditional authorship attributed to the Gospels attributed to them by the earliest Christian claim has been disputed and denied by critical scholarship, the dating given for most of the canonical gospels is within the window of “living memory” for the writing of ancient biographies about a historical figure.[15] Keener defines “living memory” as a time when “some people who knew the subject were still alive when the biographer wrote” their biography.[16] This is an ideal time to write a Gospel given the access to “better sources” and communal accountability to “document” events and sayings than a later biographer would have at their disposal. Scholarly consensus places the publication of each Gospel within the range of “living memory” of the first century. This fits within a literary period of the early Roman Empire in which concern for historical biographical accuracy peaked, roughly between the first century B.C. to the third century A.D.[17]

The Argument from Memory

In Christobiography, Craig Keener marshalls a compelling case that the Gospel biographies have many of the features of the ancient biographies. The following section seeks to condense Kenner’s overall argument. I argue for a remarkably stable environment for historical writing, with a focus on living memory and oral sources, which were adapted to write an ancient biography of a recent figure within living memory with a concern for accurate history telling.[18]

To focus the present argument, the historical preface to Luke-Acts will be used to inform and illustrate these conventions:

Inasmuch as many have undertaken to compile a narrative of the things that have been accomplished among us, just as those who from the beginning were eyewitnesses and ministers of the word have delivered them to us, it seemed good to me also, having followed all things closely for some time past, to write an orderly account for you, most excellent Theophilus, that you may have certainty concerning the things you have been taught. (Luke 1:1–4 English Standard Version)[19]

Luke’s preface elicits the reader to anticipate that a historical narrative is forthcoming and constrained by pre-existing Jesus knowledge. Luke readily demonstrates that a historian’s use of convention to compose history is not incompatible with the doctrine of inspiration.[20] Nevertheless, here the focus is only given to how the Gospels are examples of reliably composed ancient biographical documents using the sources and conventions available to the authors.

Luke illustrates that the early church had a depository of oral tradition available to them extending back to “those who from the beginning were eyewitnesses and ministers of the word” (Luke 1:2). The presence of oral tradition alone does not suggest stability, as it could be argued that the further away from Jerusalem over the years, the oral tradition lacked authentic “controls on the content” to prevent corruption.[21] Admittedly, this is a very complex question. It requires an appreciation that one’s memory precedes chronologically “memoir” and “oral tradition,” which brings into focus the question: how reliable was the first-generation memory of Jesus on which the Gospels are written? Part of the answer is found in the strength of the communal memory of the first generation of eyewitnesses to preserve and provide accountability to the transmission of oral tradition even if certain details were distorted, or allowable stylistic changes crept in.[22] That is to say, distortions may occur when forgetting certain details (location, timeframe), but in an organically controlled environment, memory will likely not invent new stories.

Craig Keener argues at length that memory studies “offer no reason to discount” that the Gospels, as ancient biography, “preserve substantial information about Jesus.”[23] Debates occur over how much “core” Jesus is preserved in the Gospels from the source of memory and oral tradition. The skepticism of how much ancients could remember, it should be tempered with contemporary “Westerners” use of memory to reconstruct from their own living memory, despite the natural limitations of organic memory.[24] When it comes to what the earliest disciples should have remembered, memory studies point to an expectation that the collective memory and oral tradition of the disciples should have provided a basic historical portrait of Jesus.

The retelling of the same or parallel events with stylized segments of Jesus’ teaching, the person mentioned, or details omitted, are the kinds of elements that would be found within well a preserved oral tradition and communal memory. This is particularly important for the oral teaching of Jesus in which the oral community cared more for substance (the gist) over the verbatim recollection.[25] Thus, Keener argues, there are good historical grounds for accepting the shared events, themes, teachings, and deeds of Jesus and his inner circle.[26]

Historical Arguments

The present historical arguments affirm the reliability of the Gospels. First, archaeological confirmation situates the realism of the biographical narratives. Second, early Christian letters predating the Gospels include early Christian creedal statements, possible quotations, and allusions to the teaching of Jesus.

Archaeological Corroboration

Archaeology is a precarious discipline as it does not always yield all the desired corroborating evidence for a specific event or person. Nevertheless, “evidence-based apologetics” is linked to the proper use and interpretation of archaeological findings.[27] Excavations from various cities connected to Jesus have illuminated the realism found in the Gospel narratives, but by the nature of the case, they do not confirm the supernatural deeds of Jesus.[28] It is immaterial if one’s horizon believes the Gospels exaggerate these aspects of the historical Jesus or allow for them.[29] There was a time when it was believed that archaeology could only date the birth of Christ but provide little that would illustrate Jesus’ life.[30]

Archaeology has since demonstrated places mentioned exist (e.g., Nazareth), illustrating agrarian life (mill stones, viticulture), living conditions (homes), topography, economics (Roman and Judean coins), and other socio-cultural realities.[31] In 1961, an inscription was found at Caesarea Maritimis confirming externally that Pontius Pilate was the Judean prefect during the reign of Tiberius Caesar. The realism of stories of the twelve disciples traveling by boat in the Sea of Galilee was confirmed in 1986 when a first-century fishing boat was found in the Sea of Galilee. In an impressive find, in 1968 the remains of an early first-century crucified man, named Yehohanan, were discovered in a family bone box (ossuary) found in the northern city limits of Jerusalem. This find illuminates Jewish death customs of the period, that Judean crucified victims as criminals received proper burial rites (like Jesus), instead of the claim of some that the crucified were buried in unmarked mass graves.[32]

Pre-Gospel Allusions in Paul and James

A second historical argument is made from pre-Gospel publication creedal statements, quotations, and allusion to Paul and James the Just. Paul is believed to have suffered martyrdom under Nero in Rome (A.D. 64–67).[33] In Galatians 1:11–2:10, the content of Paul’s gospel is authenticated by the earliest disciples of Jesus. In 1 Corinthians 15:1–8, Paul appeals to a pre-existing creedal statement affirming the death, burial, resurrection, and multiple resurrected appearances of Jesus (Matt 28:1–10; Luke 24:1–49). Additionally, Paul distinguishes his teaching on marital issues from known circulating instruction from Jesus (1 Cor 7:10, 12).[34] In Romans 1:1–6, is found the belief that Jesus is of Davidic lineage (Matt 1:17). In 1 Timothy 5:18, Paul cites what is likely an oral saying of Jesus that is found nearly verbatim in Luke 10:7.[35]

Additionally, James wrote an early epistle to Hebrew Christians. He was executed by high priest Ananus II during the transition from procurator Festus to Albinus (A.D. 62), alluding to the teaching of his brother Jesus.[36] Blomberg demonstrates that no epistle “contains as many passages that verbally resemble the teaching of Jesus” as James, so much so, that some believe James had access at minimum to Matthew’s sermon on the mount (Matt 5–8).[37] The resemblances seem consistent with the fluid nature of oral tradition.

These references from Paul and James, and many other letters, do not alone prove beyond the shadow of a doubt the historical reliability of the Gospels, but they do show how the Gospels fall within the continuity of pre-publication beliefs.

A Summation

The “ground clearing” arguments demonstrate that there is good ancient first-century source material that has been adequately preserved and reliably translated into English for those who would like to know about Jesus. Additionally, the oral tradition techniques and composition with available sources to write ancient history are remarkably stable to deliver the four Gospel biographies of Jesus within living memory. Finally, the external historical reliability of the Gospels is seen in the authentic writings of Paul and James, and archaeological corroboration of the realism and setting of the Gospels. I pray this cumulative case leads someone to believe that the Gospels are reliable so that one day they may come to believe in the Jesus of the Gospels.[38]

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Endnotes

1. To be clear, I do not affirm that these are the only arguments that can be made. Nor have I included all historical “ground clearing” issues (e.g., historical methodology, etc.). I have limited the discussion to these seven arguments due to space and convenience.
2. These are my personal arrangements of the arguments.
3. Former cold-case detective, J. Warner Wallace, remarks, “cumulative case arguments are typically built on a number of pieces of evidence, each of which may be imperfect or insufficient when considered in isolation. When examined in totality, however, the case becomes strong and reasonable.” He goes on, “opponents of cumulative cases usually attack the imperfections or insufficiencies they observe in the single pieces of evidence within the larger case. But remember, each individual evidence is admittedly less than sufficient, and this has no impact on whether or not the final conclusion, given the overwhelming nature of the cumulative case, is reasonable.” See, “Intense Investigation,” Forensic Faith: A Homicide Detective Makes the Case for a More Reasonable, Evidential Christian Faith, Logos electronic ed. (Colorado Springs, CO: Cook, 2017), n.p.
4. Craig S. Keener, Christobiography: Memory, History, and the Reliability of the Gospels (Grand Rapids, MI: Eerdmans, 2019), 11.
5. The idea of “ground clearing” arguments is taken from a passing statement in a lecture by Craig L. Blomberg on the reliability of the Gospels. The structure of this paper relies on the selective use of Blomberg’s lectures from a Fall 2022 Biola University graduate course titled, “The Reliability of the Gospels.”
6. Paul Barnett likewise asserts, “our first and most basic step is to identify, date, and assess the historical value of our sources for Jesus Christ” (Finding the Historical Christ [Grand Rapids, MI: Eerdmans, 2009], 11).
7. Craig L. Blomberg, The Historical Reliability of the Gospels, 2^nd ed. (Downers Grove, IL: IVP Academic, 2007), 249–280; Barnett, Finding the Historical Christ, 11–64.
8. Richard C. Carrier, Proving History: Bayes’s Theorem and the Quest for the Historical Jesus, Kindle ed. (Amherst, NY: Prometheus, 2012), location 174: “We have to use the methods of textual criticism and paleography to ascertain whether a document we presently have is authentic and accurately reflects its original—since usually only copies of copies exist today.”
9. John Warwick Montgomery, History, Law and Christianity (1964; reprint, Irvine, CA: NRP Books, 2014), 11–13; Josh McDowell and Sean McDowell, Evidence that Demands a Verdict: Life-Changing Truth for a Skeptical World (Nashville, TN: Nelson, 2017), 46–47.
10. Blomberg points out it is not a fair use of the textual evidence to suggest the earlier back one goes, there will be an increase in variants (Historical Reliability, 335–36). Still, the earliest extant manuscripts are second-century papyrus fragments of Matthew 23:30–39 (P77) and John 18:31–34 and 18:37–38 (P52), and John 18:36–19:7 (P90) attesting to the early circulation of these books (Philip W. Comfort, Early Manuscripts and Modern Translations of the New Testament [Grand Rapids, MI: Baker, 1990], 31–71). There are witnesses to Syriac and Old Latin translations of the gospels as early as the second century (Bruce M. Metzger, The Bible in Translation: Ancient and English Versions [Grand Rapids, MI: Baker Academic, 2001], 25–35). The gospels are cited or alluded to in first-to-second-century patristic literature such as Ignatius, Barnabas, Clement, Polycarp, etc. (cf. Oxford Society of Historical Theology, The New Testament in the Apostolic Fathers (reprint, Bellingham, WA: Logos Research, 2009).
11. Blomberg, Historical Reliability, 332–33; For his alarmist rhetoric see, Bart Ehrman, “The Copyists of the Early Christian Writings” in Misquoting Jesus: The Story Behind Who Changed the Bible and Why (New York: HarperCollins, 2005), 45–69.
12. Philip W. Comfort, Essential Guide to Bible Versions (Wheaton, IL: Tyndale House, 2000), 104.
13. Comfort, Essential Guide, 103–04.
14. On “optimal equivalence” see “The CSB Translation Philosophy: Optimal Equivalency” (Feb. 14, 2017).
15. McDowell and McDowell compare the dating ranges of the four Gospels among conservative and liberal scholarship and provide these ranges in Evidence that Demands a Verdict (42–46): Matthew (early 60s–80s; 80–100), Mark (late 50s–late 60s; 70s), Luke (early 60s–80s; 70–110), John (mid-60s–100; 90–100).
16. Keener, Christobiography, 2.
17. Keener, Christobiography, 68–103.
18. Due to the nature of this essay, especially this section, I am arguing the case for reliability without seeking the shortcut of appealing to “Holy Spirit-guided inspiration.” I am fully committed to the doctrine of verbal plenary inspiration. I believe God used the conventions of the day in the production of his written Word.
19. Unless otherwise noted Scripture quotations are from the English Standard Version of The Holy Bible (Wheaton, IL: Crossway, 2016).
20. Blomberg, Historical Reliability, 38, footnote 42: “Luke describes the composition of his Gospel according to the standard process of ancient history-writing–consulting written sources, learning from oral tradition, interviewing eyewitnesses, selecting what is deemed most important for one’s own objectives.” In Keener, Christobiography, 221–39, the two-volume work Luke-Acts is profiled as a mixture of “biohistory” with each book from a sub-category of the historical genre: Luke (ancient biography) and Acts (ancient history).
21. J. Ed Komoszewski, M. James Sawyer, and Daniel B. Wallace, Reinventing Jesus (Grand Rapids, MI: Kregel, 2006), 30.
22. Komoszewski, Sawyer, and Wallace, Reinventing, 33–36.
23. Keener, Christobiography, 366.
24. Keener, Christobiography, 373. Keener points out how memories are not “videocameras… not straightforward, objective records of what happened” (374). They include constant reworking, bias, and conflation, and are vulnerable to suggestion.
25. Keener notes that verbatim recollection was very rare, and given the sample size of the teaching of Jesus, one should expect the kind of substance-focused material found in the Gospels (385–90). Cf. Darrell L. Bock, “The Words of Jesus in the Gospels: Live, Jive, or Memorex?” in Jesus Under Fire, eds. Michael J. Wilkins and J. P. Moreland (Grand Rapids, MI: Zondervan, 1995), 74–99.
26. Keener, Christobiography, 384.
27. McDowell and McDowell, Evidence that Demands a Verdict, 416.
28. Blomberg, Historical Reliability, 326–27.
29. I. Howard Marshall explores what is meant by “historical” as whether a person named x actually existed or whether a historical reference to someone named x is more fiction than history. Additionally, he pursues his project by seeking to go from “I believe in that there was a historical person called Jesus… what, if anything can be known about this person” (I Believe in the Historical Jesus, rev. ed. [Vancouver: Regent College, 2004], 16). C. K. Barrett assesses the uncomfortableness for the modern historian reading pre-scientific literature like the Gospels largely centers on the supernatural elements that do “not so appear in his own experience.” Still, it would be a “bad historical method to rule out a priori… such events” (Jesus and the Gospel Tradition [Philadelphia, PA: Fortress, 1968], 4). See a more recent discussion on “preunderstanding” horizons in Michael R. Licona, The Resurrection of Jesus: A New Historiographical Approach (Downers Grove, IL: IVP Academic, 2010), 38–50.
30. James H. Charlesworth, “Jesus Research and Archaeology” in The World of the New Testament: Cultural, Social, and Historical Contexts, eds. Joel B. Green and Lee Martin McDonald (Grand Rapids, MI: Baker Academic, 2013), 441.
31. Blomberg, Historical Reliability, 326–31. Charlesworth lists over one-hundred-twenty items ranging from the mundane to the illustrious (“Jesus Research,” 443–45).
32. Craig A. Evans, “Jesus and the Ossuaries,” Bulletin for Biblical Research 13.1 (2003): 33. The multiply attested “burial tomb tradition” (Mark 15:42–47) has been doubted by various critical scholars, like John Dominic Crossan, who believes crucifixion meant “death-without-burial” and “body-as-carrion” (Who Killed Jesus? [New York: HarperCollins, 1995], 163–68).
33. For Paul’s death see 1 Clement 5:5–7, 6:1; for context and historical analysis see Sean McDowell, The Fate of the Apostles: Examining the Martyrdom Accounts of the Closest Followers of Jesus (2008; reprint, New York: Routledge, 2015), 93–114.
34. Blomberg describes this as a “powerful confirmation of the care with which the first Christians distinguished the words of the historical Jesus from later instructions inspired by his Spirit” (Historical Reliability, 287).
35. Although critics do not list 1 Timothy among Paul’s authentic letters, the arguments are far from definitive and do not make Pauline authorship impossible (Martin Dibelius and Hans Conzelmann, The Pastoral Epistles, trans. Philip Buttolph and Adela Yarbro [Philadelphia, PA: Fortress, 1972], 1–5; George W. Knight, III, The Pastoral Epistles [1992; reprint, Grand Rapids: Eerdmans, 2013], 21–52).
36. For the death of James the Just see Josephus Antiquities 20.197–200; For context and historical analysis see Sean McDowell, The Fate of the Apostles, 115–34.
37. Blomberg, Historical Reliability, 292–93.
38. This “two decision” model is taken from Wallace, Cold-Case Christianity, 255–58.

Works Cited

Barnett, Paul. Finding the Historical Christ. After Jesus, volume 3. Grand Rapids, MI: Eerdmans, 2009.

Barrett, C. K. Jesus and the Gospel Tradition. Philadelphia, PA: Fortress, 1968.

Blomberg, Craig L. The Historical Reliability of the Gospels. 2^nd edition. Downers Grove, IL: IVP Academic, 2007.

Bock, Darrell L. “The Words of Jesus in the Gospels: Live, Jive, or Memorex?” in Jesus Under Fire, edited by Michael J. Wilkins and J. P. Moreland, 74–99. Grand Rapids, MI: Zondervan, 1995.

Carrier, Richard. Proving History: Bayes’s Theorem and the Quest for the Historical Jesus. Kindle edition. Amherst, New York: Prometheus Books, 2012.

Charlesworth, James H. “Jesus Research and Archaeology” in The World of the New Testament: Cultural, Social, and Historical Contexts, edited by Joel B. Green and Lee Martin McDonald, 439–66. Grand Rapids, MI: Baker Academic, 2013.

Crossan, John Dominic. Who Killed Jesus? Exposing the Roots of Antisemitism in the Gospel Story of the Death of Jesus. New York: HarperCollins, 1995.

Dibelius, Martin, and Hans Conzelmann. The Pastoral Epistles. Translated by Philip Buttolph and Adela Yarbro. Herm. Edited by Helmut Koester, et al. Philadelphia: Fortress, 1972.

Ehrman, Bart D. Misquoting Jesus: The Story Behind Who Changed the Bible and Why. New York: HarperCollins, 2005

Evans, Craig A. “Jesus and the Ossuaries.” Bulletin for Biblical Research 13.1 (2003): 21–46.

Keener, Craig S. Christobiography: Memory, History, and the Reliability of the Gospels. Grand Rapids, MI: Eerdmans, 2019.

Knight, George W., III. The Pastoral Epistles. NIGTC. Edited by I. Howard Marshall and W. Ward Gasque. 1992. Reprint, Grand Rapids: Eerdmans, 2013.

Komoszewski, J. Ed, M. James Sawyer, and Daniel B. Wallace. Reinventing Jesus: What the Da Vinci Code and other Novel Speculations Don’t Tell You. Grand Rapids, MI: Kregel Publications, 2006.

Licona, Michael R. The Resurrection of Jesus: A New Historiographical Approach. Downers Grove, IL: IVP Academic, 2010.

Marshall, I. Howard. I Believe in the Historical Jesus. Revised edition. Vancouver, BC: Regent College, 2002.

McDowell, Josh, and Sean McDowell. Evidence That Demands a Verdict: Life-Changing Truth for a Skeptical World. Nashville, TN: Nelson, 2017.

McDowell, Sean. The Fate of the Apostles: Examining the Martyrdom Accounts of the Closest Followers of Jesus. 2015. Reprint, New York: Routledge, 2018.

Montgomery, John Warwick. History, Law and Christianity. 1964. Reprint, Irvine, CA: NRP Books, 2014.

Wallace, J. Warner. Cold-Case Christianity: A Homicide Detective Investigates the Claims of the Gospels. Colorado Springs, CO: Cook, 2013.

_____. Forensic Faith: A Homicide Detective Makes the Case for a More Reasonable, Evidential Christian Faith. Colorado Springs, CO: David C Cook, 2017.

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