One day Moses was taking care of Jethro’s flock. (Jethro was the priest of Midian and also Moses’ father-in-law.) When Moses led the flock to the west side of the desert, he came to Sinai, the mountain of God.
Moses went back to Jethro, his father-in-law, and said to him, “Let me go back to my people in Egypt. I want to see if they are still alive.” Jethro said to Moses, “Go! I wish you well.”
Hobab was the son of Reuel the Midianite, who was Moses’ father-in-law. Moses said to Hobab, “We are moving to the land the Lord promised to give us. Come with us and we will be good to you, because the Lord has promised good things to Israel.”
If any who are unclean do not become clean, they must be cut off from the community. Since they were not sprinkled with the cleansing water, they stay unclean, and they could make the Lord’s Holy Tent unclean.