Numbers 18:20-27

²⁰And the Lord said unto Aaron, In their land shalt thou have no inheritance, and any portion shalt thou not have among them: I am thy portion and thy inheritance among the children of Israel.

²¹And to the children of Levi, behold, I have given every tithe in Israel, for an inheritance, in lieu of their service which they render, the service of the tabernacle of the congregation.

²²And the children of Israel shall not henceforth come nigh unto the tabernacle of the congregation, to bear sin, to die thereby.

²³But they of the tribe of Levi themselves shall perform the service of the tabernacle of the congregation, and they shall bear their iniquity: a statute for ever shall it be throughout your generations; and among the children of Israel shall they not possess any inheritance.

²⁴But the tithes of the children of Israel, which they offer as a heave-offering unto the Lord, have I given to the Levites for an inheritance: therefore have I said unto them, Among the children of Israel shall they obtain no inheritance.

²⁵And the Lord spoke unto Moses, saying,

²⁶And unto the Levites shalt thou speak, and say unto them, When ye take from the children of Israel the tithes which I have given you from them for your inheritance: then shall ye separate therefrom a heave-offering of the Lord, the tenth part of the tithe.

²⁷And your heave-offering shall be reckoned unto you, like the corn of the threshing-floor, and as the fulness of the wine-press.