Malachi 4:6 ASV

⁴  Remember ye the law of Moses my servant, which I commanded unto him in Horeb for all Israel, even statutes and ordinances.

⁵  Behold, I will send you Elijah the prophet before the great and terrible day of Jehovah come.

⁶  And he shall turn the heart of the fathers to the children, and the heart of the children to their fathers; lest I come and smite the earth with a curse.