Leviticus 16:14-16
Read Leviticus 16 in full →14“Moreover, ahe shall take some of the blood of the bull and sprinkle it bwith his finger on the mercy seat on the east side; also in front of the mercy seat he shall sprinkle some of the blood with his finger seven times.
15“Then he shall slaughter the goat of the sin offering awhich 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 he shall sprinkle it on the mercy seat and in front of the mercy seat. 16“aSo he shall make atonement for the holy place because of the uncleanness of the sons of Israel and because of their transgressions in regard to all their sins; and thus he shall do for the tent of meeting which abides with them in the midst of their uncleanness.