Thank you for the link. Actually, the lengthy essay on Doherty that you posted
It's actually a mishmash of things I've written previously, and as you've read "Carrier's argument at length on the subject" it's not very fair to ask me to refute lengthy arguments with a single post.
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Our exchanges have already far exceeded what most people have patience for
So you don't read them (which is why, after multiple attempts to show classicists are historians, you thought I was saying something completely different). You've already expressed that you learned to summarize things to students. Then you state you have read Carrier's argument at length and the critiques, and you want me to do in short and simple ways what these various long critiques didn't do for you.
I am writing this after deleting a response I've been writing for 3 hours. I'm going to give you a breakdown of the problems of his argument instead.
1) You say the critiques relies "too much on formulaic language". I ran several searches through the TLG to compare uses of sibling terms in the NT. Out of a total of 17 forms and 370 instances, 145 were nominative/vocative, and out of these 98 were from the epistles. We have almost no "brothers of the Lord" and one "brother". This is where I got into the math.
2) Carrier states "all Christians are brothers of the lord", but does not show that all are called brothers of the lord. The phrase appears almost nowhere in the NT and as a general way of referring to Christian almost nowhere in several centuries. Every single approach in sociolinguistics, markedness, probability, construction grammar, and more tells us that Carrier's logic is flawed.
3) Paul does separate his teachings from those of the Lord, and in the thread I created for you I explained how this is true.
4) Your scribal interpolation theory assumes that Christians would want to add this. Eusebius, in
HE 1.12.4-5, quotes Paul here, but adds in that James is an "alleged" brother. Eusebius later gives us the reason for qualifying this kin relationship: the perpetually Virgin Mary. In early Christian literature (Epiphanius, Origen, Jerome, Helvidius) there were at least five different explanations for James, including denying they were brothers at all. Jerome tried to prove he was a cousin. So if we imagine that scribal interpolation was likely and that your view of textual criticism was informed, then we'd expect to see this line
removed.
5) That's the kind of manuscript treatment of James we find. We know of only one or two major alterations (i.e., they appear in the textual commentaries), but while Peter is mentioned 190, James is mentioned 11 times. As Freyne puts it, "To put the matter bluntly, James was not wholly written out of the official script of Christian origins, but only because those responsible could not have done so and remained credible." I quoted him at length originally to give his support for the statement, but there's your summary.
6) I can't summarize textual critical methods. However, as shown by 4 and 5, your theory about scribal alterations is based nearly complete ignorance of where to begin. We find the exact opposite of what you are claim is a good reason for suspecting this line is an interpolation. I can't point you to sources online and for free, or try and supply those I know of, but it is impossible to get into how incredibly you mischaracterize the nature of textual transmission.
7) You seem to think that Carrier is applying a much needed skepticism. This contrasts so utterly with his actual writing on ancient history that the mind boggles. When you can explain to me why he has filled his dissertations with descriptions of people we typically have only one or to references two and no context dating from the middle ages, not to mention turning inscriptions and epitaphs into short bios of eminent scientists, then perhaps you can explain why Carrier's skepticism is warranted rather than a double standard.