I Have given

Numbers 3:6-9
"Bring the tribe of Levi and present them to Aaron the priest to assist him. . . .

Numbers 18:2-6
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. . . .

1 Chronicles 23:28-32
but their duty was to assist the descendants of Aaron with the service of the house of the LORD, being responsible for the courts and chambers, the purification of all the holy things, and the work of the service of the house of God, . . .

Ezekiel 44:11-14
Yet they shall be ministers in My sanctuary, having charge of the gates of the temple and ministering there. They shall slaughter the burnt offerings and other sacrifices for the people and stand before them to minister to them. . . .

a gift.

Numbers 1:53
But the Levites are to camp around the tabernacle of the Testimony and watch over it, so that no wrath shall fall on the Israelite congregation. So the Levites are responsible for the tabernacle of the Testimony."

Numbers 16:46
Moses said to Aaron, "Take your censer, place fire from the altar in it, and add incense. Go quickly to the congregation and make atonement for them, because wrath has come out from the LORD; the plague has begun."

Numbers 18:5
So you shall attend to the obligations of the sanctuary and of the altar, that wrath may not fall on the Israelites again.

1 Samuel 6:19
But God struck down some of the people of Beth-shemesh because they looked inside the ark of the LORD. He struck down seventy men, and the people mourned because the LORD had struck them with a great slaughter.

2 Chronicles 26:16-20
But when Uzziah grew powerful, his arrogance led to his own destruction. He was unfaithful to the LORD his God, for he entered the temple of the LORD to burn incense on the altar of incense. . . .