Numbers 3:9-11 American Standard Version (ASV)
9 And thou shalt give the Levites unto Aaron and to his sons: they are [a]wholly given unto him [b]on the behalf of the children of Israel. 10 And thou shalt [c]appoint Aaron and his sons, and they shall keep their priesthood: and the stranger that cometh nigh shall be put to death.
11 And Jehovah spake unto Moses, saying,
Numbers 3:9-11 New International Version (NIV)
9 Give the Levites to Aaron and his sons; they are the Israelites who are to be given wholly to him.[a] 10 Appoint Aaron and his sons to serve as priests; anyone else who approaches the sanctuary is to be put to death.”
11 The Lord also said to Moses,