For all the firstborn of the children of Israel, both of men and of beasts, are mine. From the day that I slew every firstborn in the land of Egypt, have I sanctified them to myself.
And have delivered them for a gift to Aaron and his sons out of the midst of the people, to serve me for Israel in the tabernacle of the covenant, and to pray for them, lest there should be a plague among the people, if they should presume to approach unto my sanctuary.
But he stretching forth his right hand, put it upon the head of Ephraim the younger brother; and the left upon the head of Manasses who was the elder, changing his hands.
I 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.