Numbers 3:11 in the King James Version
And the LORD spake unto Moses, saying,
Context
10 You shall appoint Aaron and his sons, and they shall keep their priesthood, but the stranger who comes near shall be put to death.”
11 The LORD spoke to Moses, saying,
12 “Behold, I have taken the Levites from among the children of Israel instead of all the firstborn who open the womb among the children of Israel; and the Levites shall be mine,