Well, from a non-Catholic position, it seems to me that God did not need anyone to preserve His word for Him.
He was more than capable of using any means He chose, as the Dead Sea Scrolls attest to.
Being the Holy Spirit inspired, God breathed word of God, they stand by themselves because of their inherent nature.
From my point of view, God does not need our help for anything, but grants us the privilege of doing so so that later He can reward us for doing what He is working in us.
It’s grace beginning to end and we’re the only benefactors.
Oops, beneficiary.
Well right, as you write later God doesn't need us for anything.
Yes it's all grace, I merit hell.