Deuteronomy 14:26

“Now to the sons of Levi, behold, I have given all the tithe in Israel for an inheritance, in return for their service which they perform, the service of the tent of meeting.

“There also you and your households shall eat before Yahweh your God, and be glad in all that you send forth your hand to do, in which Yahweh your God has blessed you.

“Bring the whole tithe into the storehouse, so that there may be food in My house, and test Me now in this,” says Yahweh of hosts, “if I will not open for you the windows of heaven and empty out for you a blessing until it is beyond enough.