Deuteronomy 23:8

23:8 Children of the third generation born to them may enter the assembly of the Lord.

Deuteronomy 26:12

Presentation of the Third-year Tithe

26:12 When you finish tithing all your income in the third year (the year of tithing), you must give it to the Levites, the resident foreigners, the orphans, and the widows so that they may eat to their satisfaction in your villages.