Deuteronomy 14:28
At the end of three years thou shalt bring forth all the tithe of thy increase the same year, and shalt lay it up within thy gates:
Deuteronomy 14:22
Thou shalt truly tithe all the increase of thy seed, that the field bringeth forth year by year.
Amos 4:4
Come to Beth-el and transgress; at Gilgal multiply transgression; and bring your sacrifices every morning, and your tithes after three years:
Deuteronomy 26:12-15
When thou hast made an end of tithing all the tithes of thy increase the third year, which is the year of tithing, and hast given it to the Levite, the stranger, the fatherless, and the widow, that they may eat within thy gates, and be filled: