The Tithe — Deuteronomy 14:26–29

and thou shalt bestow the money for whatsoever thy soul desireth, for oxen, or for sheep, or for wine, or for strong drink, or for whatsoever thy soul asketh of thee; and thou shalt eat there before Jehovah thy God, and thou shalt rejoice, thou and thy household.

And the Levite that is within thy gates, thou shalt not forsake him; for he hath no portion nor inheritance with thee. At the end of every three years thou shalt bring forth all the tithe of thine increase in the same year, and shalt lay it up within thy gates:

and the Levite, because he hath no portion nor inheritance with thee, and the sojourner, and the fatherless, and the widow, that are within thy gates, shall come, and shall eat and be satisfied; that Jehovah thy God may bless thee in all the work of thy hand which thou doest.