Deuteronômio 14

22 Thou shalt tithe all the produce of thy seed, and all that thy field may bring forth from year to year;

29 And the Levite, because he hath no part or inheritance with thee, and the stranger, the orphan, and the widow who are in thy cities, shall come and eat and be satisfied, that the Lord thy God may bless thee in all the work of thy hand which thou shalt do.