TSK · Leviticus 16:33

If you make me an altar of stone, you shall not build it of cut stones; for if you lift up your tool on it, you have polluted it.

"Aaron shall present the bull of the sin offering, which is for himself, and shall make atonement for himself and for his house, and shall kill the bull of the sin offering which is for himself.

"He shall go out to the altar that is before Yahweh and make atonement for it, and shall take some of the bull's blood, and some of the goat's blood, and put it around on the horns of the altar.

You shall do no kind of work in that same day; for it is a day of atonement, to make atonement for you before Yahweh your God.