Malachi 2:2; Malachi 4:6

Malachi 2:2

2 "If you do not listen, and if you do not take it to heart to give honor to My name," says the LORD of hosts, "then I will send the curse upon you and I will curse your blessings; and indeed, I have cursed them already, because you are not taking it to heart.

Malachi 4:6

6 "He will restore the hearts of the fathers to their children and the hearts of the children to their fathers, so that I will not come and smite the land with a curse."