Numbers Chapter 3 Darby English Bible
And Nadab and Abihu died before Jehovah when they offered strange fire before Jehovah in the wilderness of Sinai, and they had no sons; and Eleazar and Ithamar exercised the priesthood in the presence of Aaron their father.
And I, behold, I have taken the Levites from among the children of Israel instead of every firstborn that breaketh open the womb among the children of Israel, and the Levites shall be mine;
for every firstborn is mine. On the day that I smote all the firstborn in the land of Egypt, I hallowed unto me all the firstborn in Israel, both of man and beast; mine shall they be: I am Jehovah.
And their charge was the ark, and the table, and the candlestick, and the altars, and the utensils of the sanctuary with which they ministered, and the curtain, and all that belongs to its service.
And the charge of the sons of Merari consisted in the oversight of the boards of the tabernacle, and its bars, and its pillars, and its bases, and all its furniture, and all that belongs to its service,
And those who encamped before the tabernacle eastward, before the tent of meeting toward the sunrising, were Moses, and Aaron and his sons, who kept the charge of the sanctuary for the charge of the children of Israel; and the stranger that cometh near shall be put to death.
All that were numbered of the Levites, whom Moses and Aaron numbered at the commandment of Jehovah, according to their families, all the males from a month old and upward, were twenty-two thousand.
And thou shalt take the Levites for me (I am Jehovah) instead of all the firstborn among the children of Israel; and the cattle of the Levites, instead of all the firstlings among the cattle of the children of Israel.