For the Lord thy God hath chosen him of all thy tribes, to stand and to minister to the name of the Lord, him and his sons for ever.

Deuteronomy 10:8 At that time he separated the tribe of Levi, to carry the ark of the covenant of the Lord, and to stand before him in the ministry, and to bless in his name until this present day.

Deuteronomy 17:12 But he that will be proud, and refuse to obey the commandment of the priest, who ministereth at that time to the Lord thy God, and the decree of the judge, that man shall die, and thou shalt take away the evil from Israel:

Exodus 28:1 Take unto thee also Aaron thy brother with his sons, from among the children of Israel, that they may minister to me in the priest's office: Aaron, Nadab, and Abiu, Eleazar, and Ithamar.

Numbers 3:10 To Aaron and to his sons, to whom they are delivered by the children of Israel. But thou shalt appoint Aaron and his sons over the service of priesthood. The stranger that approacheth to minister, shall be put to death.

Numbers 16:5,9,10 And speaking to Core and all the multitude, he said: In the morning the Lord will make known who belong to him, and the holy he will join to himself: and whom he shall choose, they shall approach to him. . . .

Numbers 17:5-9 Whomsoever of these I shall choose, his rod shall blossom: and I will make to cease from me the murmurings of the children of Israel, wherewith they murmur against you. . . .

Numbers 25:13 And the covenant of the priesthood for ever shall be both to him and his seed, because he hath been zealous for his God, and hath made atonement for the wickedness of the children of Israel.