Numbers 8:19
And I have given the Levites as a gift to Aaron and his sons from among the people of Israel, to do the service for the people of Israel at the tent of meeting and to make atonement for the people of Israel, that there may be no plague among the people of Israel when the people of Israel come near the sanctuary."
Numbers 1:53
But the Levites shall camp around the tabernacle of the testimony, so that there may be no wrath on the congregation of the people of Israel. And the Levites shall keep guard over the tabernacle of the testimony."
Numbers 16:46
And Moses said to Aaron, "Take your censer, and put fire on it from off the altar and lay incense on it and carry it quickly to the congregation and make atonement for them, for wrath has gone out from the LORD; the plague has begun."
Numbers 3:6-9
"Bring the tribe of Levi near, and set them before Aaron the priest, that they may minister to him.
Numbers 18:2-6
And with you bring your brothers also, the tribe of Levi, the tribe of your father, that they may join you and minister to you while you and your sons with you are before the tent of the testimony.
1 Samuel 6:19
And he struck some of the men of Beth-shemesh, because they looked upon the ark of the LORD. He struck seventy men of them, and the people mourned because the LORD had struck the people with a great blow.
1 Chronicles 23:28-32
For their duty was to assist the sons of Aaron for the service of the house of the LORD, having the care of the courts and the chambers, the cleansing of all that is holy, and any work for the service of the house of God.
2 Chronicles 26:16-20
But when he was strong, he grew proud, to his destruction. For he was unfaithful to the LORD his God and entered the temple of the LORD to burn incense on the altar of incense.
Ezekiel 44:11-14
They shall be ministers in my sanctuary, having oversight at the gates of the temple and ministering in the temple. They shall slaughter the burnt offering and the sacrifice for the people, and they shall stand before the people, to minister to them.