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.
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.
The tenth day of the seventh month is the Great Day of Forgiveness. It is a solemn day of worship; everyone must go without eating to show sorrow for their sins, and sacrifices must be burned.
After it was killed, Moses dipped a finger in the blood and smeared some of it on each of the four corners of the bronze altar, before pouring out the rest at the foot of the altar. This purified the altar and made it a fit place for offering the sacrifice for sin.