Leviticus 16
5 Ref And let him take from the children of Israel two he-goats for a sin-offering and one male sheep for a burned offering.
6 Ref And Aaron is to give the ox of the sin-offering for himself, to make himself and his house free from sin.
7 Ref And he is to take the two goats and put them before the Lord at the door of the Tent of meeting.
8 Ref And Aaron will make selection from the two goats by the decision of the Lord, one goat for the Lord and one for Azazel.
9 Ref And the goat which is marked out for the Lord, let Aaron give for a sin-offering.