Numbers 18:26

"Moreover you shall speak to the Levites, and tell them, 'When you take of the children of Israel the tithe which I have given you from them for your inheritance, then you shall offer up a wave offering of it for Yahweh, a tithe of the tithe.

Nehemiah 10:38

The priest the son of Aaron shall be with the Levites, when the Levites take tithes: and the Levites shall bring up the tithe of the tithes to the house of our God, to the rooms, into the treasure house.

Numbers 18:21

"To the children of Levi, behold, I have given all the tithe in Israel for an inheritance, in return for their service which they serve, even the service of the Tent of Meeting.

Treasury of Scripture Knowledge

Summary

Thus speak unto the Levites, and say unto them, When ye take of the children of Israel the tithes which I have given you from them for your inheritance, then ye shall offer up an heave offering of it for the LORD, even a tenth part of the tithe.

Then ye shall

A tenth part

General references

Bible References

Then ye shall

Numbers 18:19
All the wave offerings of the holy things, which the children of Israel offer to Yahweh, have I given you, and your sons and your daughters with you, as a portion forever: it is a covenant of salt forever before Yahweh to you and to your seed with you."

A tenth part

Nehemiah 10:38
The priest the son of Aaron shall be with the Levites, when the Levites take tithes: and the Levites shall bring up the tithe of the tithes to the house of our God, to the rooms, into the treasure house.

General references

Numbers 15:21
Of the first of your dough you shall give to Yahweh a wave offering throughout your generations.