You put a question mark on "inspired by God himself?" Perhaps that's because some authors say upfront that the words they’re writing are theirs not God’s. For example, Paul after writing, "To the married people I give instructions, yet not I but the Lord . . ." (at 1 Corinthians 7:10) two verses later (at 1 Corinthians 7:12) he says, "But to the others I say, yes, I, not the Lord . . ." Regarding his Gospel, Luke said: "I resolved also . . . to write . . ." (Luke 1:1- 4) instead of something like "I was inspired also . . . to write . . ."