halbhh
The wonder and awe of "all things".
The only import is to demonstrate clearly that the bible has errors in it. Theologically, that's kinda huge (at least if we are starting from an inerrentist position), which is why many commentators spend a lot of time trying to find solutions rather than admitting the error.
In the commentary you linked, you'll notice 2 of the 6 proposed solutions are simply accepting the error, and 1 is rejected by the commentary itself as implausible (again highlighting that there is no consensus even amongst those who would 'solve' the problem). The proposed solution of prominence prophet has been dealt with alread in my posts, as has the idea of Zechariah really speaking the prophecy. The only proposed solution offered here is the Targum theory, which is not very plausible given chapter 2 - the link to Grisly's paper I provided has more commentary on this solution.
Perhaps you didn't feel you had time to compare with Romans ch 3 with how Paul mismashed stuff starting with verse 10 (that same commentary, the same source I used before, is helpful on that as a quick overview). A "cento" they called it.
I gather a "cento" (was a new word for me yesterday) is a sort of creative new thing composed of pieces of older things.
So, since the "cento" ( I like having a new term here... ) is just a way to sorta....
....creatively reuse fragments from a variety of sources, it would be ok to list one prominent source among those, to me. (subjective, but that's "to me" I said)
So, as the commentary specifies:
a cento of passages derived from Jeremiah 18:2, etc.; Jeremiah 19:1, 2; 32:8-14, combined with the prediction in Zechariah, and attributed the passage thus formed to the most celebrated prophet.
That's only an simple, direct observation of just what it is.
It's...well, clearly what it is. I don't need it to be some odd big thing. It's a cento. And it's got plenty of company in scripture -- other centos. (or is it "centoes"?)
Now if it was the only cento, then it would stick out.... But it isn't.