Leviticus 16:15

16:15 “He must then slaughter the sin offering goat which is for the people. He is to bring its blood inside the veil-canopy, and he is to do with its blood just as he did to the blood of the bull: He is to sprinkle it on the atonement plate and in front of the atonement plate.

Leviticus 16:21

16:21 Aaron is to lay his two hands on the head of the live goat and confess over it all the iniquities of the Israelites and all their transgressions in regard to all their sins, and thus he is to put them on the head of the goat and send it away into the wilderness by the hand of a man standing ready.