Numbers 26:1-4

After the plague had ended, the LORD said to Moses and to Eleazar son of Aaron the priest, “From the whole community of Israel, record the names of all the warriors by their families. List all the men twenty years old or older who are able to go to war.” So there on the plains of Moab beside the Jordan River, across from Jericho, Moses and Eleazar the priest issued these instructions to the leaders of Israel: “List all the men of Israel twenty years old and older, just as the LORD commanded Moses.” This is the record of all the descendants of Israel who came out of Egypt.