'Requirements' in the Bible

The king of Assyria was told, "The nations whom you deported and settled in the cities of Samaria do not know the requirements of the God of the land, so he has sent lions among them. They are killing the people because they do not know the requirements of the God of the land."

So the king of Assyria ordered, "Take back one of the priests whom you deported from there. He must settle there and teach them the requirements of the God of the land."