Malachi 3:8; Malachi 3:10

8 Will man rob God? Yet you are robbing me. But you say, 'How have we robbed you?'In your tithes and contributions.

10 Bring the full tithe into the storehouse, that there may be food in my house. And thereby put me to the test, says the LORD of hosts, if I will not open the windows of heaven for you and pour down for you a blessing until there is no more need.