Leviticus 16:10

7 And he is to take the two goats and put them before the Lord at the door of the Tent of meeting.

8 And Aaron will make selection from the two goats by the decision of the Lord, one goat for the Lord and one for Azazel.

9 And the goat which is marked out for the Lord, let Aaron give for a sin-offering.

10 But the goat for Azazel is to be placed living before the Lord, for the taking away of sin, that it may be sent away for Azazel into the waste land.

11 And Aaron is to give the ox of the sin-offering for himself and take away sin from himself and his house, and put to death the ox of the sin-offering which is for himself.

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.