'According to the Law' in the Bible

and therefore art thou sent of the king and of the seven lords of the counsel, to visit Judah and Jerusalem, according to the law of God, which is in thy hand;

for now will we make a covenant with our God, that we shall put away all the wives - and such as are born of them - according to the counsel of the LORD and of them that fear the commandment of our God, that we may do according to the law.