[Metaphor alert: this post contains an overabundance of metaphors.]
1. I normally avoid debates over evidentialism because I think that's usually a cul-de-sac. Since, however, that's how Lydia McGrew has framed the issue on Gospel harmonization, I'll bite.
2. One objection to inerrancy is that commitment to inerrancy is a house of cards or row of dominoes. Or like pulling a thread. It only takes on error for the house of cards to topple and the dominoes to tumble. When that happens, Christians lose their faith.
Evidentialism is said to be more stable. A protective against apostasy. Because evidentialism only requires Scripture to be generally reliable, the faith of an evidentialist can survive Biblical errors.
This is often combined with a Resurrection apologetic. If Jesus rose from the dead, then Christianity is true regardless of whatever else is false. If Jesus rose from the dead, then Christianity is true, even if Adam and Eve never existed, Abraham never existed, Noah's flood never happened, the Exodus never happened, &c. (I'm not attributing that position to Lydia.)
I sometimes wonder how evidentialists like that would ever witness to an orthodox Jew.
To use yet another metaphor, we might compare evidentialism to the "web" of belief–popularized by Quine. A spider web has redundant structural integrity. You can snip a strand here or there, but the web will retain its form and function. Some strands are central while others are peripheral.
3. Now, what I found curious about Lydia McGrew's position concerning Gospel harmonization is that it seems like the weight of even one or two stock examples will collapse the evidentialist web, depending on the harmonistic strategy.
I understand what she's opposed to with respect to Licona, because she's spelled that out. She's also given some examples of what she considers to be acceptable harmonizations. For instance:
Jairus is distraught, he knows that even coming to Jesus has taken some time and that the child was dying when he left, and he says something to Jesus like, "My daughter is on the point of death. By this time, I'm sure she is dead! But come and lay your hand on her and she will live." One gospel reports "on the point of death" and the other reports "is dead." This is an economical and not at all implausible harmonization.
http://whatswrongwiththeworld.net/2016/02/gospel_fictionalization_theory.html
However, much of the discussion suffers from an abstract, hypothetical quality, due to the absence of actual, concrete examples from writers other than Licona. At the risk of using another metaphor, I don't know where all the tripwires are planted in her position. I know she thinks Licona stepped on a tripwire. But that represents one extreme. I'd like to probe the boundaries of her position. The inner and outer limits. What's the spread of acceptable harmonistic strategies?
I'm going to quote some notable inerrantist scholars on three representative examples she mentioned. Does she think their harmonizations step on the tripwire? Dropping the metaphor, does she think their harmonizations, if true, would render the Gospels untrustworthy? If that's what the Gospel writer were really up to, would that destroy their historical credibility? Let's get very specific.
Centurion's servant
Matthew has the centurion speaking to Jesus directly, while Luke has Jewish emissaries speaking to Jesus, and the centurion never talks directly with Jesus. So what is taking place here?
Two things are happening at once. The cultural context of the sent emissary (shaliach) and literary compression are both in play. Matthew often compresses accounts. For example, his telling of the healing of Jairus's daughter is more compact, as is his telling of the triumphal entry…Luke, given his concern for Jew-Gentiles relations, offers more detail by noting the representatives. When the shaliach, as an emissary, spoke on behalf of someone, it was as good as that person speaking. Jesus said as much of his disciples when he said that to accept the disciples was to accept him (Jn 13:20; also 2 Kgs 19:20-34). A modern analogy would be how a press secretary speaks for the White House and the president. So Luke gives us the detail of the event, and Matthew simplifies its telling by compressing things literarily. Each account is accurate, but Luke's is more precise. D. Bock, "Precision and Accuracy: Making Distinctions in the Cultural Context," J. Hoffmeier & D. Magary, ed. Do Historical Matters Matter to Faith? (Crossway, 2012), 373-74.
A more recent scholar, R. T. France, writes as follows:
His [Matthew’s] omission of the means of the centurion’s approach to Jesus is a valid literary device to highlight the message of the incident as he sees it (on the principle, common in biblical and contemporary literature, that a messenger or servant represents the one who sent him to the point of virtual identity).9
As a further illustration of the principle, Craig Blomberg points to Matthew 27:26 and Mark 15:15.10 Both verses report that Pilate scourged Jesus; but, given the social and military protocol of the Roman world, Pilate would not have taken up the scourge in his own hands. The verses mean that Roman soldiers would have physically handled the scourge, acting on Pilate’s orders. That is to say, the Roman soldiers represented Pilate because they acted under his authority. Pilate did scourge Jesus, though he did not do it “in person” but through representatives acting on his behalf. Likewise, the centurion really did address Jesus, but he did it by means of persons acting under his authority and on his behalf—the elders and friends represented him.
We have the accounts in Matthew and Luke, which are inspired by God. They are what God says and are therefore trustworthy. That is the conviction we have and the basis on which we work. But we do not have a third account, also inspired, to tell us exactly how the original two accounts fit together. We make our own reasoned guesses, but they are fallible. We do not have complete information. Our reconstruction, though it may be plausible, is subordinate to the Gospel accounts as we have them. V. Poythress, Inerrancy and the Gospels (Crossway, 2012), 21-22.
A careful reading of the text raises the question, "Who actually spoke to Jesus? Was it the centurion as Mt 8:5-9 records or was it the elders of the Jews and the friends as Lk 7:3,6 claim?…The problem can be resolved by the use of a present-day example. If a conversation between the President of the United States and the Premier of Russia were reported, it could be described in at least two ways. First, the president says in English to his interpreter, "A". The interpreter then says in Russian to the premier, "A". The premier says in Russian to his interpreter, "B", and the interpreter says in English to the president, "B". Second, the president says to the premier, "A". The premier responds "B". Both descriptions are correct! The last account, which every newspaper report follows, chooses to omit for brevity's sake the role of the interpreter.
The apparent disagreement between Matthew's and Luke's versions disappears when it is understood that Matthew eliminates the reference to the messengers from his account…Matthew may have done this for the sake of brevity. He had other materials that he wanted to include in his Gospel. The length of a papyrus was limited…Both Matthew and Luke would take up an entire scroll.
Which is correct? Both are correct, for both accurately report what happens between the centurion and Jesus. To be disturbed by Matthew's omission would be to require greater historical exactness in this account than in present-day reports. Neither Matthew nor Luke err in their reports of this incident. It is important to understand how they tell their story of this incident and not demand that they do so in a specific format. R. Stein, Interpreting Puzzling Texts in the New Testament (Baker, 1996), 35-38.
Common to modern Western and ancient Eastern cultures is the habit of speaking about people as acting for themselves even when they use intermediaries. A news reporter may state flatly, "the President of the United States today announced," when in fact it was his press secretary who spoke on his behalf, and quite possibly a speechwriter who composed the words, yet non-one accuses the commentator of inaccurate reporting…This type of linguistic convention undoubtedly explains the differences between Matthew's and Luke's narratives of the Capernaum centurion. C. Blomberg, The Historical Reliability of the Gospels (IVP, 2nd ed., 2007), 176.
Raising Jairus' daughter
The more challenging difficulty has to do with when the daughter died. In Matthew Jairus says, “My daughter has just died” (Matt. 9:18). In Mark and Luke we have two stages. First, Jairus asks Jesus to come because “my little daughter is at the point of death” (Mark 5:23). Next, while Jesus is saying his final words to the woman healed from her bleeding, someone comes from Jairus’s house announcing, “Your daughter is dead” (5:35).
Here it may be useful to remember Matthew’s tendency to compress material. We saw compression clearly in the opening genealogies. In this account of Jairus’s daughter, Matthew’s is the shortest of the three accounts, both in the number of verses and in the number of words. He has nine verses compared to twenty-two in Mark. Matthew omits the name Jairus. He mentions that the father is a “ruler,” but omits the detail of what he is a ruler of—“a ruler of the synagogue.” He omits the crowd around Jesus. He omits the second stage in which someone comes to say that the daughter has died. He omits the mention of Peter, James, and John. He omits the parents’ going into the room with Jesus. He omits Jesus’s direction to give the girl something to eat. He omits the charge to tell no one.
The collapse into one stage—the daughter has died—is in harmony with the kind of thing that Matthew indicates in his opening genealogy. It is compression.
Matthew makes a choice to give us a compressed narrative. How much can a person say once he has chosen this kind of option?…If the narrative is going to unfold two distinct stages, there needs to be something that intervenes to differentiate them. In practice, this differentiation requires not only more specific information about timing of various events, but also the addition of a report to Jairus, so that Jairus comes to know of his daughter’s death. So a commitment to narrating two stages leads to the inclusion of an explicit mention of people from Jairus’s house who deliver the message to Jairus and to Jesus. Some complexity must be added to the narration.
But then, if a person has decided to give a compressed narrative, it does not really leave space for a full explanation. The narrator must be content with a summary… Compression reduces the number of options available. Hence, Matthew’s account, which wraps together what in Mark and Luke are two stages in Jairus’s interaction with Jesus, does not contradict Mark and Luke. He is not making a contrastive assertion that stands over against (“contrasts” with) a two-stage narration.
The ancient context did not have special apparatus from modern medical technology to determine the exact moment of death. Even with our technology, there is a region of uncertainty, since, for example, it takes some time for cells in the brain to die after the heart stops beating. V. Poythress, Inerrancy and the Gospels (Crossway 2012), 206-209,211.
The problems that Matthew's account raises can be resolved once the literary style of Matthew is recognized…Matthew obviously abbreviates the story by omitting the following details…It is clear that Matthew has a tendency to abbreviate the various accounts he incorporates into his Gospel…In his desire to include additional material Matthew was concerned with the limitation of his scroll. Our present Gospel of Matthew contains about much material as a single scroll could contain.
Matthew summarized the story of Jesus' raising of Jairus's daughter. He records that a ruler of the synagogue comes to Jesus for help concerning his daughter and that Jesus goes to his home and raises her from the dead. What he omits are various interesting but unnecessary details such as that when Jaurus first arrives his daughter is not yet dead. R. Stein, Interpreting Puzzling Texts in the New Testament (Baker, 1996), 40-42.
Perhaps the most perplexing differences between parallels occur when one Gospel writer has condensed the account of an event that took place in two or more stages into one concise paragraph that seems to describe the action taking place all at once. Yet this type of literary abridgment was quite common among ancient writers (cf. Lucian, How to Write History 56), so once again it is unfair to judge them by modern standards of precision that no-one in antiquity required. The two most noteworthy examples of this process among the Gospel parallels emerge in the stories of Jesus raising Jairus's daughter and cursing the fig tree.
In the first story, Matthew drastically abbreviates Mark's three-part account, which includes (1) the initial summons for Jesus to come to Jairus' home before the girl dies, (2), the intervening delay while he heals the hemorrhaging woman, and (3) his climactic arrival after the death of the daughter, and her subsequent revivification (twenty-three verses compressed into nine). As a result, Matthew omits the initial appeal "my daughter is dying", and has Jairus in stage 1 declare that she has just died. C. Blomberg, The Historical Reliability of the Gospels (IVP, 2nd ed., 2007), 177.
Temple cleansing
On the other hand, there is the possibility that this event took place only once. If so, it is likely that what John did was move it forward as a type of foreshadowing capsule of Jesus' conflict with the leadership and their failure to appreciate his authority. In favor of this view might be the point that 2:23 alludes to numerous signs that Jesus had done in Jerusalem when none have yet been described in John. D. Bock, Jesus According to Scripture (Baker, 2002), 427.
The Synopticists make it clear that Jesus' cleansing the temple proved to be "the last straw" for the Jewish authorities, sealing his imminent doom (Mk 11:18), so a convincing harmonization would require John to be the Evangelist who has relocated the passage. The strongest evidence in support of this is twofold. First, Jn 2:13-25 is the only passage in the opening four chapters of John not linked to what precedes or follows it by an explicit reference to chronological sequence. Second, many commentators recognize a major division in John's Gospel between chapters 11 and 12, and chapter 12 introduces the second "half" of the gospel with a chronologically dislocated passage (see p219). One could therefore assume that the cleansing of the temple introduces the first "half" the same way, with the six-day sequences of 1:1-2:12 as an introduction. On the other hand, it is at least possible that Jesus cleansed the temple twice. C. Blomberg, The Historical Reliability of the Gospels (IVP, 2nd ed., 2007), 216-17.
Perhaps we read John and picture the cleansing described in John 2:14–15 in immediate connection with the preceding and following parts of John’s narrative. We picture it as occurring near in time to the “first of his signs” narrated in 2:11. We picture it near the beginning. But this is a mental picture, not necessarily reality.
We have to ask whether John or any of the synoptic accounts make contrastive claims about temporal location. John 2:13 says, “The Passover of the Jews was at hand, and Jesus went up to Jerusalem.” Which Passover? We are not told. It is natural for readers to see this going up to Jerusalem as proceeding from the location last mentioned, namely Capernaum, where Jesus stayed a few days (John 2:12). But John does not explicitly tell us about a direct temporal succession here. The “hint,” if there is one, is simply the juxtaposition of two episodes in the written neighborhood of one another. But might John have had other reasons for a juxtaposition like this one?
Do we get any help from what follows the cleansing of the temple? What follows is John 3:1ff., the passage about Nicodemus. Thematically, it is connected with the general statement in John 2:25that Jesus “knew what was in a man.”But there is no explicit temporal connection. We do not get information about the chronology of events. The placement of the episode in the text is, in my opinion, chronologically flexible. V. Poythress, Inerrancy and the Gospels (Crossway, 2012), 137.