Numbers 18 in the early church

So the LORD said to Aaron, “You and your sons and your father’s house must bear the iniquity involving the sanctuary. And you and your sons alone must bear the iniquity involving your priesthood.

But bring with you also your brothers from the tribe of Levi, the tribe of your father, that they may join you and assist you and your sons before the Tent of the Testimony.

And they shall attend to your duties and to all the duties of the Tent; but they must not come near to the furnishings of the sanctuary or the altar, or both they and you will die.

And you shall attend to the duties of the sanctuary and of the altar, so that wrath may not fall on the Israelites again.

But only you and your sons shall attend to your priesthood for everything concerning the altar and what is inside the veil, and you are to perform that service. I am giving you the work of the priesthood as a gift, but any outsider who comes near the sanctuary must be put to death.”

Then the LORD said to Aaron, “Behold, I have put you in charge of My offerings. As for all the sacred offerings of the Israelites, I have given them to you and your sons as a portion and a permanent statute.

A portion of the most holy offerings reserved from the fire will be yours. From all the offerings they render to Me as most holy offerings, whether grain offerings or sin offerings or guilt offerings, that part belongs to you and your sons.

I give you all the freshest olive oil and all the finest new wine and grain that the Israelites give to the LORD as their firstfruits.

The firstborn of every womb, whether man or beast, that is offered to the LORD belongs to you. But you must surely redeem every firstborn son and every firstborn male of unclean animals.

Then the LORD said to Aaron, “You will have no inheritance in their land, nor will you have any portion among them. I am your portion and your inheritance among the Israelites.

Behold, I have given to the Levites all the tithes in Israel as an inheritance in return for the work they do, the service of the Tent of Meeting.

No longer may the Israelites come near to the Tent of Meeting, or they will incur guilt and die.

“Speak to the Levites and tell them: ‘When you receive from the Israelites the tithe that I have given you as your inheritance, you must present part of it as an offering to the LORD—a tithe of the tithe.

Your offering will be reckoned to you as grain from the threshing floor or juice from the winepress.