
Can texts ever speak for themselves?
I have been thinking for a while about a series of arguments and statements on what religious texts actually can say. In some video from Dan McClellan ( https://www.youtube.com/watch?v=5CAWRJ1JIig ) and in comments on this subreddit, I've heard that doctrine is drawn from texts by followers. In some ways, this makes sense to me. One can hear different denominations argue over theological fine points with each using the same text for their argument but simply interpreting things differently.
But when someone says, and I hope it is fine that I quote a moderator here, "The Bible is neither inerrant nor univocal, including the NT's view of Jesus, and indeed God in general. It is not possible to build a systematic theology [or view of God] based on [history or] the bible. The past is gone." I am wondering if this is a universal claim that is just being applied to the Bible in this situation, or a specific claim based on the science of linguistics and history?
In other words, is the understanding that no text can ever so to say, speak for itself? No text, even if intending to, could produce a systemic theology? If so, how high is that bar? Because I could understand if someone simply says "Yes it says X, but this was meant in a special way and can't be read plainly. Therefore it actually means Y". But that sounds different from me than reading depth into a text that tried to say something direct and plain.
Hopefully this question is still within the subreddit's aim.