'Written in the Book' in the Bible

just as Moses the servant of the Lord had commanded the sons of Israel, as it is written in the Book of the Law of Moses, an altar of uncut stones on which no one has wielded an iron tool; and they offered on it burnt offerings to the Lord, and sacrificed peace offerings.

Then afterward Joshua read all the words of the law, the blessing and curse, according to all that is written in the Book of the Law.

So the sun stood still, and the moon stopped,Until the nation [of Israel] took vengeance upon their enemies.Is it not written in the Book of Jashar? So the sun stood still in the middle of the sky and was in no hurry to go down for about a whole day.

Be steadfast and very determined to keep and to do everything that is written in the Book of the Law of Moses, so that you do not turn aside from it to the right or the left,