Leviticus 16:3

Day of Atonement Offerings

16:3 “In this way Aaron is to enter into the sanctuary – with a young bull for a sin offering and a ram for a burnt offering.

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 16:33-34

16:33 and he is to purify the Most Holy Place, he is to purify the Meeting Tent and the altar, and he is to make atonement for the priests and for all the people of the assembly. 16:34 This is to be a perpetual statute for you to make atonement for the Israelites for all their sins once a year.” So he did just as the Lord had commanded Moses.