'Book of the Law' in the Bible

This book of the law shall not depart from your mouth, but you shall meditate on it day and night, so that you may be careful to do according to all that is written in it; for then you will make your way prosperous, and then you will have success.

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 man had wielded an iron tool; and they offered burnt offerings on it to the Lord, and sacrificed peace offerings.

Then afterward he read all the words of the law, the blessing and the curse, according to all that is written in the book of the law.

Be very firm, then, to keep and do all that is written in the book of the law of Moses, so that you may not turn aside from it to the right hand or to the left,

And Joshua wrote these words in the book of the law of God; and he took a large stone and set it up there under the oak that was by the sanctuary of the Lord.