'Book of the Law' in the Bible

but the children of the murderers he put not to death; according to that which is written in the book of the law of Moses, as Jehovah commanded, saying, The fathers shall not be put to death for the children, nor the children be put to death for the fathers; but every man shall die for his own sin.

And Hilkiah the high priest said unto Shaphan the scribe, I have found the book of the law in the house of Jehovah. And Hilkiah delivered the book to Shaphan, and he read it.

And it came to pass, when the king had heard the words of the book of the law, that he rent his clothes.