12. 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.
13. For every firstborn is mine: since I struck the firstborn in the land of Egypt: I have sanctified to myself whatsoever is firstborn in Israel both of man and beast, they are mine: I am the Lord.
14. And the Lord spoke to Moses in the desert of Sinai, saying:
15. Number the sons of Levi by the houses of their fathers and their families, every male from one month and upward.
16. Moses numbered them as the Lord had commanded.
17. And there were found sons of Levi by their names, Gerson and Caath and Merari.
18. The sons of Gerson: Lebni and Semei.