'Law of Moses' in the Bible

but he did not execute the children of the murderers, in keeping with what is written in the Book of the Law of Moses, as the LORD had commanded: "Fathers must not be put to death because of their children's sin; nor are children to die because of their fathers' sin, for each person is to be put to death for his own sin."

There had been no king like him before him, who turned to the LORD with all his heart, with all his soul, and with all his strength, in obeying everything in the Law of Moses. No king arose like Josiah after him.