Malachi 4:5 in the King James Version
Behold, I will send you Elijah the prophet before the coming of the great and dreadful day of the LORD:
Context
4 “Remember the law of Moses my servant, which I commanded to 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 the LORD comes.
6 He will turn the hearts of the fathers to the children and the hearts of the children to their fathers, lest I come and strike the earth with a curse.”