Deuteronomy 14:28
"At the end of three years you shall bring out all [of] the tithe of your yield for that year, and you shall store [it] in your {towns}.
Deuteronomy 14:22
"Certainly you must give a tithe [of] all the yield of your seed, {which comes forth from your field year after year}.
Amos 4:4
"Come [to] Bethel and transgress; [to] Gilgal and {multiply transgression}! Bring your sacrifices in the morning and your tithes on the {third day}.
Deuteronomy 26:12-15
"When you are finished {giving a tithe}, all of the tithe of your produce in the third year, the year of the tithe, then you shall give to the Levite, to the alien, to the orphan, and to the widow, so that they may eat in your towns and they may be satisfied.