Once a year Aaron must purify the altar by smearing on its four corners the blood of an animal sacrificed for sin, and this practice must always be followed. The altar is sacred because it is dedicated to me.
Take some of the animal's blood and smear it on the four corners of the altar, some on the corners of the middle section, and some more on the rim around its edge. That will purify the altar and make it fit for offering sacrifices to me.
The next day, a goat that has nothing wrong with it must be offered as a sacrifice for sin. Purify the altar with its blood, just as you did with the blood of the bull.
The priest will take some blood from this sacrifice and smear it on the doorposts of the temple, as well as on the four corners of the altar and on the doorposts of the gates that lead into the inner courtyard.
By doing this, you will take away the sins that make both the most holy place and the people of Israel unclean. Do the same for the sacred tent, which is here among the people.
Then, in my presence, he must smear some of the blood on each of the four corners of the incense altar, before pouring out the rest at the foot of the bronze altar near the entrance to the tent.
Then, in my presence, he will smear some of the blood on each of the four corners of the incense altar, before pouring out the rest at the foot of the bronze altar near the entrance to the tent.