Leviticus 16:13-17

He shall put the incense on the fire before the Lord, so that the cloud of incense may cover the atoning cover that is on the ark of the testimony, otherwise he will die.

Moreover, he shall take some of the blood of the bull and sprinkle it with his finger on the atoning cover on the east side; also in front of the atoning cover he shall sprinkle some of the blood with his finger seven times.

“Then he shall slaughter the goat of the sin offering, which is for the people, and bring its blood inside the veil and do with its blood as he did with the blood of the bull, and sprinkle it on the atoning cover and in front of the atoning cover.

He shall make atonement for the Holy Place, because of the impurities of the sons of Israel and because of their unlawful acts regarding all their sins; and he shall do so for the tent of meeting which remains with them in the midst of their impurities.

When he goes in to make atonement in the Holy Place, no one shall be in the tent of meeting until he comes out, so that he may make atonement for himself and for his household, and for all the assembly of Israel.