Deuteronomy 14:28
At the end of every three years take a tenth part of all your increase for that year, and put it in store inside your walls:
Deuteronomy 14:22
Put on one side a tenth of all the increase of your seed, produced year by year.
Amos 4:4
Come to Beth-el and do evil; to Gilgal, increasing the number of your sins; come with your offerings every morning and your tenths every three days:
Deuteronomy 26:12-15
When you have taken out a tenth from the tenth of all your produce in the third year, which is the year when this has to be done, give it to the Levite, and the man from a strange land, and the child without a father, and the widow, so that they may have food in your towns and be full;