Numbers 26:1-4

After the plague the LORD said to Moses and Eleazar son of Aaron, the priest, “Take a census of the whole Israelite community by families—all those twenty years old or more who are able to serve in the army of Israel.” So on the plains of Moab by the Jordan across from Jericho, Moses and Eleazar the priest spoke with them and said, “Take a census of the men twenty years old or more, as the LORD commanded Moses.” These were the Israelites who came out of Egypt