For the prophecy came not in old time by the will of man: but holy men of God spake as they were moved by the Holy Ghost. -2 Peter 1:21
So, according to His own Word, God is responsible for telling His men what to write. If this is the case, why isn’t God brought up in more Biblical authorship debates? I think many times we humans think on a solely physical plane and can sometimes forget about God’s point of view. Arguing from the perspective that God has decided what books should stay and go in His own Word, might seem like a counterproductive argument against atheistic sentiments. This perspective is not counterproductive because atheists and agnostics argue from purely naturalistic and humanistic positions. Why can’t we as children of the ultimate spiritual Force in the universe argue from spiritual perspectives? Let’s stop taking God out of the equation.