Numbers 18:26

And to the Levites thou shalt speak and say to them, When ye shall take from the sons of Israel the truth which I gave to you from them for your inheritance, and ye lifted up an offering of Jehovah, a tenth from the tenth.

Nehemiah 10:38

And the priest the son of Aaron being with the Levites in the tenth of the Levites: and the Levites shall bring up the tenth of the tenth to the house of our God to the cells to the house of the treasure.

Numbers 18:21

And to the sons of Levi, behold, I gave all the tenth in Israel for an inheritance for their services which they served, the service of the tent of appointment

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 offerings of the holy things which the sons of Israel shall lift up to Jehovah, I gave to thee, and to thy sons, and to thy daughters with thee, for a law forever: it a covenant of salt forever before Jehovah to thee, and to thy seed with thee.

A tenth part

Nehemiah 10:38
And the priest the son of Aaron being with the Levites in the tenth of the Levites: and the Levites shall bring up the tenth of the tenth to the house of our God to the cells to the house of the treasure.

General references

Numbers 15:21
From the first of your groats, shall ye give to Jehovah a lifting up, for your generations.