Deuteronomy 14:29 NIV

29 so that the Levites (who have no allotment1 or inheritance2 of their own) and the aliens,3 the fatherless and the widows who live in your towns may come and eat and be satisfied,4 and so that the LORD your God may bless5 you in all the work of your hands.

References for Deuteronomy 14:29