Malachi 3:7-8; Malachi 3:13

7 "Since the days of your fathers, you have turned from My statutes; you have not kept [them]. Return to Me, and I will return to you," says the Lord of Hosts. But you ask: "How can we return?" 8 "Will a man rob God? Yet you are robbing Me!" You ask: "How do we rob You?" "[By not making the payments] of 10 percent and the contributions.
13 "Your words against Me are harsh," says the Lord. Yet you ask: "What have we spoken against You?"