Numbers 1:1-3

21st Century King James Version

1 And the Lord spoke unto Moses in the Wilderness of Sinai, in the tabernacle of the congregation, on the first day of the second month, in the second year after they had come out of the land of Egypt, saying,

² “Take ye the number of all the congregation of the children of Israel, by their families, by the house of their fathers, with the number of their names, every male by head count

³ from twenty years old and upward, all who are able to go forth to war in Israel. Thou and Aaron shall number them by their armies.