Deuteronomy 14:28
Every third year, bring all the tithes of your produce of that year and store it in your cities
Deuteronomy 14:22
"Be sure to tithe annually from everything you plant that yields a harvest in the field.
Amos 4:4
"Come to Bethel and sin, to Gilgal and sin even more! Bring along your morning sacrifices, and pay your tithes every other day.
Deuteronomy 26:12-15
"When you have finished your harvest, reserve the tithe in the third year (the year of the tithe), and give the entire tithe to the descendants of Levi, to the foreigners, to the orphans, and to the widows, so they may eat and be satisfied in your cities.