Leviticus 16:15

12 And he is to take a vessel full of burning coal from the altar before the Lord and in his hand some sweet perfume crushed small, and take it inside the veil;

13 And let him put the perfume on the fire before the Lord so that the ark may be covered with a cloud of the smoke of the perfume, in order that death may not overtake him.

14 And let him take some of the blood of the ox, shaking drops of it from his finger on the cover of the ark on the east side, and before it, seven times.

15 Then let him put to death the goat of the sin-offering for the people, and take its blood inside the veil and do with it as he did with the blood of the ox, shaking drops of it on and before the cover of the ark.

16 And let him make the holy place free from whatever is unclean among the children of Israel and from their wrongdoing in all their sins; and let him do the same for the Tent of meeting, which has its place among an unclean people.

17 And no man may be in the Tent of meeting from the time when Aaron goes in to take away sin in the holy place till he comes out, having made himself and his house and all the people of Israel free from sin.

18 And he is to go out to the altar which is before the Lord and make it free from sin; and he is to take some of the blood of the ox and the blood of the goat and put it on the horns of the altar and round it;