Numbers 1:1-3

Young's Literal Translation

1 And Jehovah speaketh unto Moses in the wilderness of Sinai, in the tent of meeting, on the first of the second month, in the second year of their going out of the land of Egypt, saying:

² `Take ye up the sum of all the company of the sons of Israel by their families, by the house of their fathers, in the number of names -- every male by their polls;

³ from a son of twenty years and upward, every one going out to the host in Israel, ye do number them by their hosts, thou and Aaron;