2 Bible Verses about Books, Metaphorical Use

Then I saw a great white throne and One who was seated on it, from whose presence earth and sky fled away, and no place was found for them. And I saw the dead, the great and the small, standing in front of the throne. And books were opened; and so was another book--namely, the Book of Life; and the dead were judged by the things recorded in the books in accordance with what their conduct had been.

So I went to the angel and asked him to give me the little book. "Take it," he said, "and eat the whole of it. You will find it bitter when you have eaten it, although in your mouth it will taste as sweet as honey." So I took the roll out of the angel's hand and ate the whole of it; and in my mouth it was as sweet as honey, but when I had eaten it I found it very bitter.