'Law of the Lord' in the Bible

When the kingdom of Rehoboam was established and strong, he and all Israel with him forsook the law of the Lord.

They taught in Judah, having the book of the law of the Lord with them; and they went throughout all the cities of Judah and taught among the people.

He also appointed the king’s portion of his goods for the burnt offerings, namely, for the morning and evening burnt offerings, and the burnt offerings for the sabbaths and for the new moons and for the fixed festivals, as it is written in the law of the Lord.

Also he commanded the people who lived in Jerusalem to give the portion due to the priests and the Levites, that they might devote themselves to the law of the Lord.

When they were bringing out the money which had been brought into the house of the Lord, Hilkiah the priest found the book of the law of the Lord given by Moses.

Now the rest of the acts of Josiah and his deeds of devotion as written in the law of the Lord,