Malachi 3:6-7

6“For I am the Lord, I do not change [but remain faithful to My covenant with you]; that is why you, O sons of Jacob, have not come to an end.

7“Yet from the days of your fathers you have turned away from My statutes and ordinances and have not kept them. Return to Me, and I will return to you,” says the Lord of hosts. “But you say, ‘How shall we return?’