'Book' in the Bible

For when every commandment had been spoken by Moses to all the people according to the law, he took the blood of the calves and the goats, with water and scarlet wool and hyssop, and sprinkled both the book itself and all the people,

Then I said, 'Behold, I have come (in the scroll of the book it is written of me) to do your will, O God.'"