Leviticus 16:29–34

²⁹“Here is a law for you that will last for all time to come. On the tenth day of the seventh month you must not eat anything. You must not do any work. It does not matter whether you are Israelites or outsiders.

³⁰“On that day your sin will be paid for. You will be made pure and clean. You will be clean from all of your sins in my sight. ³¹That day is a sabbath for you. You must rest on it. You must not eat anything on that day. That is a law that will last for all time to come.

³²“The high priest must pay for sin. He must make everything pure and clean. He has been anointed and prepared to become the next high priest after his father. He must put on the sacred clothes that are made out of linen. ³³He must make the Most Holy Room, the Tent of Meeting and the altar pure. And he must pay for the sin of the priests and all of the people in the whole community.

³⁴“Here is a law for you that will last for all time to come. Once a year you must pay for all of the sin of the people of Israel.”

So it was done, just as the Lord commanded Moses.