Deuteronomy 21:5

And He said, “What have you done? The voice of your brother’s blood is crying out to Me from the ground.

Then Aaron lifted up his hands toward the people and blessed them, and he stepped down after offering the sin offering and the burnt offering and the peace offerings.

At that time Yahweh set apart the tribe of Levi to carry the ark of the covenant of Yahweh, to stand before Yahweh to minister for Him and to bless in His name to this day.

“So innocent blood will not be shed in the midst of your land which Yahweh your God gives you as an inheritance, and bloodguiltiness be on you.

Then he said to me, “The north chambers and the south chambers, which are opposite the separate area, they are the holy chambers where the priests who are near to Yahweh shall eat the most holy things. There they shall lay the most holy things, the grain offering, the sin offering, and the guilt offering; for the place is holy.

“And in a dispute, they shall take their stand to judge; they shall judge it according to My judgments. They shall also keep My laws and My statutes in all My appointed times and keep My sabbaths holy.