The New Testament writers did not invent a doctrine of Scripture they inherited it.
In every generation there are voices that question the authority of Scripture. So in one sense this is merely part of the continuing stream. But there's a sense in which the questions that are raised against Scripture vary a wee bit from generation to generation.
Not all Scripture is propositional, some of it is asking questions, some of it's rhetorical, but where Scripture is stating something, asserting something, making a truth claim, uttering a proposition that is claiming to be true, it is the truth.
Some have argued that the Christian notion of Scripture is not epistemologically sustainable. It's not philosophically possible with rigor to uphold the Christian understanding of Scripture.
