THE SUBSTITUTE FOR THE FIRST BORN

Again the LORD spoke to Moses, saying,
“Behold, I have taken the Levites from among the sons of Israel instead of and as a substitute for every firstborn, that is, the first that opens the womb among the Israelites. So the Levites shall be Mine,
for all the firstborn are Mine. On the day that I killed all the firstborn in the land of Egypt, I consecrated for Myself all the firstborn in Israel, both man and animal. They shall be mine; I am the LORD.”

A CENSUS OF ISRAEL’S WARRIORS

A Census of Israel’s Warriors. he LORD spoke [by special revelation] to Moses in the Wilderness of Sinai in the Tent of Meeting (tabernacle) on the first day of the second month in the second year after the Israelites came out of the land of Egypt, saying,
“Take a census of all the congregation of the sons of Israel, by their families (clans), by their fathers’ households, according to the number of names, every male, head by head
from twenty years old and upward, all in Israel who are able to go out to war. You and Aaron shall number them, army by army.