Leviticus 16:11-14

11“Also Aaron is to present the bull of the sin offering which is for himself and so make atonement for himself and his house. He is to slaughter the bull of the sin offering which is for himself.

12He is to take a firepan full of coals of fire from off the altar before Adonai plus two handfuls of sweet powdered incense and bring it within the curtain.

13Then he is to put the incense on the fire before Adonai, so that the cloud of the incense may cover the atonement cover that is on the Ark, so that he would not die.

14He is then to take some of the blood of the bull and sprinkle it with his finger on the atonement cover, on the east side. Before the atonement cover he is to sprinkle some of the blood with his finger seven times.