And the LORD spake unto Moses, saying,
And thou shalt appoint Aaron and his sons, and they shall wait on their priest's office: and the stranger that cometh nigh shall be put to death.
And I, behold, I have taken the Levites from among the children of Israel instead of all the firstborn that openeth the matrix among the children of Israel: therefore the Levites shall be mine;
And ye shall know that I have sent this commandment unto you, that my covenant might be with Levi, saith the LORD of hosts.