Bart carries on in much the same vein in his analysis of the birth narratives. What is of concern to us is not where he sees differences in Matthew and Luke’s accounts, but rather where he finds what he deems to be actual discrepancies. The first of these is that Bart claims that what Luke says in Lk.2.1-3 is clearly historically in error (pp. 34-35). What however does the Greek text of Lk.2.2 actually say--- “this registration happened first/prior to the governing of Syria by Quirinius.” The issue here is the function of the word prote. What it seems to indicate is that the census in question took place prior to when Quirinius was governor of Syria. There was indeed a famous and indeed notorious census which led to the rebellion of Judas the Galilean in A.D. 6, and so Luke would be distinguishing that census from the earlier one when Mary and Joseph were enrolled. Bart also deems the notion of such enrollments as historically improbable, at least in the way Luke tells the story. There are however very clear examples from the province of Egypt of such census taking done for the purpose of taxation. And in fact, the evidence suggests a link with one’s ancestral home. I see no reason why the Romans would do it any differently with the province of Judea. Furthermore, when Augustus decide to go for the full blown Empire deal, he needed much more money for many more troops and armaments.
While Luke may be using rhetorical hyperbole when he says all the oikomene was being enrolled, a rhetorical usage common in Hellenistic historiography influenced by rhetoric, what Luke is referring to is the inhabited Roman empire, outside of Rome itself. In other words, his audience would likely have understood the reference quite easily and naturally. Bart also takes exception to the story of the wise men following the star. He says nothing of the fact that ancients often thought stars were living beings, the heavenly hosts, and it is more than likely that what Matthew is describing is the leading of the heavenly host or angels, of these persons to the birth place. Here again however some latitude must be allowed for ancient story tellers to present their narrative in ways that their audience would understand. While Matthew’s account does not tell us that Nazareth was Mary and Joseph’s hometown, his account is compatible with this fact, which Luke does tell us. The absence of an explanation does not a discrepancy make nor should it lead one to conclude the author thought something different, especially when Matthew tells us that eventually the holy family did go to Nazareth, and why would they pick that wide place in the road out of the blue if they had no prior associations with it? No good reason. The scripture fulfillment text in Matthew is a midrashic attempt to explain the fact that Nazareth was their home. It did not generate such an idea.
Lastly, Bart wants to argue that both Matthew and Luke made up the notion of a trip to Bethlehem independently of one another based on Micah’s prophecy, in order to indicate Jesus’ messianic origins, rather than suggesting he was born in a one horse town in Galilee. The problem with this is that Bethlehem itself was also a one horse town in Jesus’ day, and among other things, the slaughter of the innocents is perfectly in character with Herod’s paranoia as described in Josephus. It was hardly necessary for a messianic figure to come from Bethlehem unless one wanted to insist he was a descendant of David, but as we know from Qumran, there were other Jewish traditions that did not associate messiah with the Davidic line. In regard to the oft parodied story of the slaughter of the innocents, we are only talking about a handful of infants at most in such a tiny village anyway, perhaps 6-8. There is nothing improbable about a birth in Bethlehem at all or a slaughter of a few infants. Jesus was called Jesus of Nazareth because he grew up there from infancy.
Differences there are indeed in the accounts of the birth of Jesus in Matthew and Luke. And they are not explained by denying their existence, or resorting to false harmonizing tactics and exegetical gymnastics. We are not however talking about direct contradictions at all here. These narratives are quite compatible in all their essential details, and it is remarkable that two such independent accounts would in fact emphasize the same crucial points--- a virginal conception and a birth in Bethlehem. This did not happen because they were both creative exegetes. It happened because they both relied on historical sources of information about these events. Ehrman’s conclusion that “there are historical implausibilities and discrepancies that can scarcely be reconciled” (p. 34) is saying far more than he knows or the evidence suggests. Had Luke said Jesus was born in Nazareth and Matthew said no he was born in Bethlehem, then we would have a contradiction. But we find nothing like a contradiction in these two accounts—differences do not necessarily equal discrepancies much less equal disagreements. One has to come up with much better examples than this if one wants to claim the accounts can’t be explained or reconciled.