Numbers 26:2-4

26:2 “Take a census of the whole community of Israelites, from twenty years old and upward, by their clans, everyone who can serve in the army of Israel.” 26:3 So Moses and Eleazar the priest spoke with them in the plains of Moab, by the Jordan River across from Jericho. They said, 26:4 “Number the people from twenty years old and upward, just as the Lord commanded Moses and the Israelites who went out from the land of Egypt.”