Numbers 3:15
“Number the children of Levi after the house of their fathers, by their families: every male from a month old and upward shalt thou number them.”
Because all the firstborn are mine; for on the day that I smote all the firstborn in the land of Egypt I hallowed unto me all the firstborn in Israel, both man and beast: mine shall they be: I am the Lord.
And the Lord spake unto Moses in the wilderness of Sinai, saying,
Number the children of Levi after the house of their fathers, by their families: every male from a month old and upward shalt thou number them.
And Moses numbered them according to the word of the Lord, as he was commanded.
And these were the sons of Levi by their names; Gershon, and Kohath, and Merari.
Cross-References
“And those that were numbered of them, according to the number of all the males, from a month old and upward, were six thousand and two hundred.”
“All that were numbered of the Levites, which Moses and Aaron numbered at the commandment of the Lord, throughout their families, all the males from a month old and upward, were twenty and two thousand.”
“Every thing that openeth the matrix in all flesh, which they bring unto the Lord, whether it be of men or beasts, shall be thine: nevertheless the firstborn of man shalt thou surely redeem, and the firstling of unclean beasts shalt thou redeem.”
“Those that were numbered of them, according to the number of all the males, from a month old and upward, even those that were numbered of them were seven thousand and five hundred.”
“I love them that love me; and those that seek me early shall find me.”