Numbers 8:19
And I have given the Levites as a gift to Aaron and to his sons from among the sons of Israel, that they may serve the ministry of the sons of Israel in the tabernacle of the testimony and reconcile the sons of Israel, that there be no plague in the sons of Israel when the sons of Israel come near unto the sanctuary.
Numbers 1:53
But the Levites shall pitch round about the tabernacle of the testimony that there be no wrath upon the congregation of the sons of Israel; and the Levites shall keep the charge of the tabernacle of the testimony.
Numbers 16:46
And Moses said unto Aaron, Take the censer and put fire in it from off the altar and put incense upon it and go quickly unto the congregation and reconcile them; for the wrath has gone out from before the face of the LORD; the plague is begun.
Numbers 3:6-9
Bring the tribe of Levi near and present them before Aaron, the priest, that they may minister unto him.
Numbers 18:2-6
And thy brethren also of the tribe of Levi, the tribe of thy father, bring thou with thee, that they may be joined unto thee and serve thee; but thou and thy sons with thee shall serve before the tabernacle of the testimony.
1 Samuel 6:19
Then God smote those of Bethshemesh because they had looked at the ark of the LORD; he smote fifty thousand of the people and seventy principal men. And the people lamented because the LORD had smitten the people with such a great slaughter.
1 Chronicles 23:28-32
And their station was at the hand of the sons of Aaron for the service of the house of the LORD, in the courts, and in the chambers, and in the purifying of all holy things, and in the work of the ministry of the house of God,
2 Chronicles 26:16-20
But when he was strengthened, his heart lifted itself up unto corruption, for he rebelled against the LORD his God, entering into the temple of the LORD to burn incense upon the altar of incense.
Ezekiel 44:11-14
Yet they shall be ministers in my sanctuary, gatekeepers at the gates of the house, and servants in the house; they shall slay the burnt offering and the sacrifice for the people, and they shall stand before them to serve them.