That’s an interesting way to put it! “Possession” is indeed spoken of as a bad thing, as we’re usually thinking of demons when speaking of it. But ‘possession’ by God? Isn’t that exactly the state all of us are exhorted to voluntarily aspire toward?
I do tend to agree with you, though, @St.Roymond , that it’s probably just mincing words at this point if one was splitting hairs about “God choosing every word”, but that being different than God ‘dictating’. It seems to me that if we understand ‘dictating’ as consisting only of the normal process of one agent being physically present with another, and verbally delivering a message for the other to be taking down, then that strict understanding of dictation will of course probably allow just about everyone to escape the apparently unwanted charge of thinking scripture was dictated. But that’s such a narrow view (excluding just about everyone) as to make that distinction useless. If we understand the concept more broadly - as in every word was ultimately the controlled choice of God even though that ‘control’ came via willing and obedient minds of scribes - even to the point of also protecting later modern translations, then I think ‘dictated’ isn’t too strong a language to describe what somebody means.
So any group that claims something to the effect: “I believe each and every word in all 66 books of Protestant scriptures - because every last word of it is all the inerrant word of God” (and I imagine a fair number of denominations and people present here might affirm just such a statement), then they are effectively treating scriptures as “having been ‘dictated’ by God”, whatever such ‘dictation mechanics’ may have been involved. I don’t see any real daylight between those - they result in the very same veneration of scriptures either way, and are thus open to the same affirmation or criticism that various parties may give it. So the way I see it here, ‘dictated’ is just a convenient categorical label for how so many think of scriptures rather than a literal commentary about the mechanics of what was happening when words were being put to papyrus.
But back on the ‘possession by God’ … I must say, God - as known in Christ - would be the gentlest of ‘possessors’, and, (unlike the demons), is easily evicted at the whim of the one possessed. God does not stay on as an unwelcome guest. But hovers and patiently pursues as one tries out life apart from God.