Deuteronomy 14:28-29

At the end of three years thou shalt bring forth all the tithe of thine increase the same year, and shalt lay {it} up within thy gates: And the Levite, (because he hath no part nor inheritance with thee,) and the stranger, and the fatherless, and the widow, which {are} within thy gates, shall come, and shall eat and be satisfied; that the LORD thy God may bless thee in all the work of thine hand which thou doest.