As outlined in John 1:1, Jesus is in fact God himself, and God is something far greater and more magnificent than a humanist. The message of the Bible is a total inversion of humanism, teaching us to believe in God alone rather than ourselves for deliverance from the necessary and ultimately temporary problems of evil and suffering. It's full of stories of human beings attempting to fix things on their own and failing spectacularly (which is ironic given the history of the church).