Thematic Bible: Tribe of levi taken instead of the first-born

And the Lord said to Moses, See, I have taken the Levites out of the children of Israel to be mine in place of the first sons of the children of Israel; For all the first sons are mine; on the day when I put to death all the first sons in the land of Egypt, I took for myself every first male birth of man and beast. They are mine; I am the Lord.