2 Bible Verses about Books, Metaphorical Use

Then I saw a great white throne and him who sat upon it; from his presence earth and sky fled away, and no place was found for them. And I saw the dead, great and small, standing before the throne, and books were opened. Also another book was opened, which is the book of life. And the dead were judged by what was written in the books, according to what they had done.

So I went to the angel, telling him to give me the little scroll. And he said to me, "Take it and eat it; it will make your stomach bitter, but in your mouth it will be sweet as honey." I took the little scroll from the angel's hand and ate it, and in my mouth it was sweet as honey; but when I had eaten it, my stomach was made bitter.