TSK · Numbers 18:5

Aaron shall burn incense of sweet spices on it every morning. When he tends the lamps, he shall burn it.

Outside of the veil of the Testimony, in the Tent of Meeting, shall Aaron keep it in order from evening to morning before Yahweh continually: it shall be a statute forever throughout your generations.

"Don't cut off the tribe of the families of the Kohathites from among the Levites;

I have given the Levites as a gift to Aaron and to his sons from among the children of Israel, to do the service of the children of Israel in the Tent of Meeting, and to make atonement for the children of Israel; that there be no plague among the children of Israel, when the children of Israel come near to the sanctuary."

Shallum the son of Kore, the son of Ebiasaph, the son of Korah, and his brothers, of his father's house, the Korahites, were over the work of the service, keepers of the thresholds of the tent: and their fathers had been over the camp of Yahweh, keepers of the entry.

These are the singers, heads of fathers' [houses] of the Levites, [who lived] in the rooms [and were] free [from other service]; for they were employed in their work day and night.

and that they should keep the duty of the Tent of Meeting, and the duty of the holy place, and the duty of the sons of Aaron their brothers, for the service of the house of Yahweh.

Therefore thus says Yahweh of Armies concerning the prophets: Behold, I will feed them with wormwood, and make them drink the water of gall; for from the prophets of Jerusalem is ungodliness gone forth into all the land.

they shall enter into my sanctuary, and they shall come near to my table, to minister to me, and they shall keep my instruction.

This instruction I commit to you, my child Timothy, according to the prophecies which led the way to you, that by them you may wage the good warfare;

I command you in the sight of God, and Christ Jesus, and the chosen angels, that you observe these things without prejudice, doing nothing by partiality.