'One tenth' in the Bible

We will bring a loaf from our first batch of dough to the priests at the storerooms of the house of our God. We will also bring the firstfruits of our grain offerings, of every fruit tree, and of the new wine and oil. A tenth of our land’s produce belongs to the Levites, for the Levites are to collect the one-tenth offering in all our agricultural towns.

The priest, the son of Aaron, shall be with the Levites when they receive tithes, and they shall bring one-tenth of the tithes up to the house of our God, to the chambers of the storehouse.