Malachi 3:6-9

6“I the Lord do not change. So you, the descendants of Jacob, are not destroyed.

7Ever since the time of your ancestors you have turned away from my decrees and have not kept them. Return to me, and I will return to you,” says the Lord Almighty. “But you ask, ‘How are we to return?’

8“Will a mere mortal rob God? Yet you rob me. “But you ask, ‘How are we robbing you?’ “In tithes and offerings.

9You are under a curse—your whole nation—because you are robbing me.