Leviticus 16:5-7

Amplified Bible

⁵ He shall take from the congregation of the Israelites [at their expense] two male goats as a sin offering and one ram as a burnt offering. ⁶ Then Aaron shall present the bull as the sin offering for himself, and make atonement for himself and for his house. ⁷ He shall take the two goats and present them before the Lord at the doorway of the Tent of Meeting.