“This is the ritual law that applies when someone dies inside a tent: All those who enter that tent and those who were inside when the death occurred will be ceremonially unclean for seven days.
The Lord said to Moses, “Give the following instructions to the priests, the descendants of Aaron. “A priest must not make himself ceremonially unclean by touching the dead body of a relative.
All those who touch a dead body and do not purify themselves in the proper way defile the Lord’s Tabernacle, and they will be cut off from the community of Israel. Since the water of purification was not sprinkled on them, their defilement continues.
“Command the people of Israel to remove from the camp anyone who has a skin disease or a discharge, or who has become ceremonially unclean by touching a dead person.
“If someone falls dead beside them, the hair they have dedicated will be defiled. They must wait for seven days and then shave their heads. Then they will be cleansed from their defilement.
But some of the men had been ceremonially defiled by touching a dead body, so they could not celebrate the Passover that day. They came to Moses and Aaron that day