At the very least, the human authors of Scripture were infallible when writing Scripture, because they were inspired, and inspiration (saying exactly what God wishes to be said) includes infallibility (not saying what God does not wish to be said).
I am not confusing them.
There are no inspired writers, only inspired scripture.
Otherwise, what has been said by certain rabbis in the past, “The words of the scribes are weightier than the words of the prophets” would be true.