'Book of the Law' in the Bible

This book of the law shall not depart out of your mouth; but you shall meditate therein day and night, that you may observe to do according to all that is written therein: for then you shall make your way prosperous, and then you shall have good success.

As Moses the servant of the LORD commanded the children of Israel, as it is written in the book of the law of Moses, an altar of whole stones, over which no man has lifted up any iron: and they offered thereon burnt offerings unto the LORD, and sacrificed peace offerings.

And afterward he read all the words of the law, the blessings and cursings, according to all that is written in the book of the law.

Be you therefore very courageous to keep and to do all that is written in the book of the law of Moses, that you turn not 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 took a great stone, and set it up there under an oak, that was by the sanctuary of the LORD.