Leviticus 16:6-11, 21-22, 29-30, 34

“Aaron will present his own bull as a sin offering to purify himself and his family, making them right with the LORD. Then he must take the two male goats and present them to the LORD at the entrance of the Tabernacle. He is to cast sacred lots to determine which goat will be reserved as an offering to the LORD and which will carry the sins of the people to the wilderness of Azazel. Aaron will then present as a sin offering the goat chosen by lot for the LORD. The other goat, the scapegoat chosen by lot to be sent away, will be kept alive, standing before the LORD. When it is sent away to Azazel in the wilderness, the people will be purified and made right with the LORD. “Aaron will present his own bull as a sin offering to purify himself and his family, making them right with the LORD. After he has slaughtered the bull as a sin offering

He will lay both of his hands on the goat’s head and confess over it all the wickedness, rebellion, and sins of the people of Israel. In this way, he will transfer the people’s sins to the head of the goat. Then a man specially chosen for the task will drive the goat into the wilderness. As the goat goes into the wilderness, it will carry all the people’s sins upon itself into a desolate land.

“On the tenth day of the appointed month in early autumn, you must deny yourselves. Neither native-born Israelites nor foreigners living among you may do any kind of work. This is a permanent law for you. On that day offerings of purification will be made for you, and you will be purified in the LORD’s presence from all your sins.

This is a permanent law for you, to purify the people of Israel from their sins, making them right with the LORD once each year.” Moses followed all these instructions exactly as the LORD had commanded him.