And the Lord spoke to Moses, saying: 6Bring the tribe of Levi, and make them stand in the sight of Aaron the priest to minister to him, and let them watch, 7And observe whatsoever appertaineth to the service of the multitude before the tabernacle of the testimony, 8And let them keep the vessels of the tabernacle, serving in the ministry thereof. 9And thou shalt give the Levites for a gift, 10To 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. 11And the Lord spoke to Moses, saying: 12I have taken the Levites from the children of Israel, for every firstborn that openeth the womb among the children of Israel, and the Levites shall be mine. 13For every firstborn is mine: since I struck the firstborn in the land of Egypt: I have sanctified to myself whatsoever is firstborn in Israel both of man and beast, they are mine: I am the Lord.