Numbers 1:1-5

GOD spoke to Moses in the Wilderness of Sinai at the Tent of Meeting on the first day of the second month in the second year after they had left Egypt. He said, “Number the congregation of the People of Israel by clans and families, writing down the names of every male. You and Aaron are to register, company by company, every man who is twenty years and older who is able to fight in the army. Pick one man from each tribe who is head of his family to help you. These are the names of the men who will help you: from Reuben: Elizur son of Shedeur