“What, then, is the Bible about?” asks someone. Surely there can be no hesitation about answering that question; the Bible, in its essence, is the grand story of redemption. It is the history of what God has done about men and women as the result of their sin, and everything else that we find in the Bible is, in reality, incidental to that. The Bible is concerned with presenting to us the message of redemption by God and from God, in a way that we can understand and see and believe.
D. Martyn Lloyd-Jones, Great Doctrines of the Bible (Kindle Edition)