Now viewing scripture range from the book of Numbers chapter 3:13 through chapter 3:16...
13 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.
14 And the LORD spake unto Moses in the wilderness of Sinai, saying,
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.
16 And Moses numbered them according to the word of the LORD, as he was commanded.