Malachi 4:4-6

“Remember [with thoughtful concern] the Law of Moses My servant, the statutes and the ordinances which I commanded him on [Mount] Horeb [to give] to all Israel. “Behold, I am going to send you Elijah the prophet before the coming of the great and terrible day of the LORD. [Matt 11:14; 17:10-13] He will turn the hearts of the fathers to their children, and the hearts of the children to their fathers [a reconciliation produced by repentance], so that I will not come and strike the land with a curse [of complete destruction].” [Luke 1:17]