Deuteronomy 14:28
At the end of three years, thou shalt bring forth all the tithes of thine increase the same year and lay it up within thine own city,
Deuteronomy 14:22
Thou shalt tithe all the increase of thy seed that cometh out of the field year by year.
Amos 4:4
'Ye came to Bethel for to work ungraciousness, and have increased your sins at Gilgal: ye brought your sacrifices in the morning, and your tithes unto the third day.
Deuteronomy 26:12-15
When thou hast made an end of tithing all the tithes of thine increase the third year, the year of tithing - and hast given it unto the Levite, the stranger, the fatherless and the widow, and they have eaten in thy gates and filled themselves