Bible Verses About Levites: Substituted in the place of the firstborn

And thou shalt take the Levites to me for all the firstborn of the children of Israel, I am the Lord: and their cattle for all the firstborn of the cattle of the children of Israel:

Moses reckoned up, as the Lord had commanded, the firstborn of the children of Israel:

And the males by their names, from one month and upward, were twenty-two thousand two hundred and seventy-three.

And the Lord spoke to Moses, saying:

Take the Levites for the firstborn of the children of Israel, and the cattle of the Levites for their cattle, and the Levites shall be mine. I am the Lord.

I have taken them instead of the firstborn that open every womb in Israel,

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 I have taken the Levites for all the firstborn of the children of Israel: