Numbers 3:6
"Bring the tribe of Levi, and set them before Aaron the priest, and let them serve him and wait upon him -
Exodus 32:26-29
he went and stood in the gate of the host and said, "If any man pertain unto the LORD, let him come to me." And all the sons of Levi gathered themselves together and came unto him.
Numbers 1:49-53
"Only see that thou number not the tribe of Levi, neither take the sum of them among the children of Israel.
Numbers 2:17
"And the tabernacle of witness, with the host of the Levites, shall go in the midst of the hosts: as they lie in their tents, even so shall they proceed in the journey, every man in his quarter about their standards.
Numbers 2:33
And yet the Levites were not numbered among the children of Israel, as the LORD commanded Moses.
Numbers 8:6-26
"Take the Levites from among the children of Israel, and cleanse them.
Numbers 16:9-11
Seemeth it but a small thing unto you, that the God of Israel hath separated you from the multitude of Israel to bring you to him, to do the service of the dwelling place of the LORD, and to stand before the people to minister unto them?
Numbers 18:1-7
And the LORD said unto Aaron, "Thou and thy sons and thy father's house with thee, shall bear the fault of that which is done amiss in the holy place. And thou and thy sons with thee, shall bear the fault of that which is done amiss in your priesthood.
Deuteronomy 10:8
And the same season the LORD separated the tribe of Levi to bear the ark of the covenant of the LORD and to stand before the LORD, and to minister unto him and to bless in his name unto this day.
Deuteronomy 33:8-9
And unto Levi he said, "Thy perfectness and thy light be according unto the man of thy mercy, who thou hast tempted at Massah, when ye strove by the waters of strife.
Malachi 2:4
And ye shall know that I have sent this commandment unto you: that my covenant which I made with Levi, might stand, sayeth the LORD of Hosts.