13. because all the firstborn are Mine, for on the day that I struck all the firstborn in the land of Egypt I set apart to Me all the firstborn in Israel, both man and beast. They will be Mine. I am the Lord.
14. The Lord spoke to Moses in the Wilderness of Sinai, saying:
15. Number the children of Levi after the house of their fathers, by their families. You will number every male from a month old and older.
16. Moses numbered them according to the word of the Lord, as he was commanded.
17. These were the sons of Levi by their names:Gershon, and Kohath, and Merari.
18. These are the names of the sons of Gershon by their families:Libni and Shimei;
19. the sons of Kohath by their families:Amram, and Izhar, Hebron, and Uzziel;
20. the sons of Merari by their families:Mahli and Mushi.These are the families of the Levites according to the house of their fathers.
21. From Gershon was the family of the Libnites and the family of the Shimeites. These are the families of the Gershonites.
22. Those who were numbered of them, according to the number of all the males, from a month old and older, those who were numbered of them were seven thousand five hundred.
23. The families of the Gershonites were to camp behind the west side of the tabernacle.