Deuteronomy 14:23

14:23 In the presence of the Lord your God you must eat from the tithe of your grain, your new wine, your olive oil, and the firstborn of your herds and flocks in the place he chooses to locate his name, so that you may learn to revere the Lord your God always.

Deuteronomy 14:28

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.