'Law of Moses' in the Bible

but he did not put to death the sons of the murderers, according to that which is written in the book of the law of Moses, as LORD commanded, saying, The fathers shall not be put to death for the sons, nor the sons be put to death

And there was no king before him like him, who turned to LORD with all his heart, and with all his soul, and with all his might, according to all the law of Moses; neither arose any like him after him.