“Take the Levites to be substitutes for all the firstborn Israelites and the animals of the Levites to be substitutes for their animals. The Levites will be mine. I am the Lord.
It will cost you a sheep or a goat to buy back the firstborn donkey. If you don’t buy it back, then you must break the donkey’s neck. You must buy back every firstborn of your sons. “No one may come into my presence without an offering.
I have chosen the other Levites from among the Israelites to help you. They are a gift given to the Lord to do whatever work is necessary at the tent of meeting.