Deuteronomy 14:28
At the end of every three years you must bring all the tithe of your produce, in that very year, and you must store it up in your villages.
Deuteronomy 14:22
You must be certain to tithe all the produce of your seed that comes from the field year after year.
Amos 4:4
"Go to Bethel and rebel! At Gilgal rebel some more! Bring your sacrifices in the morning, your tithes on the third day!
Deuteronomy 26:12-15
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.