Ezekiel 45:18-20

18“ ‘This is what the Almighty Lord says: On the first day of the first month, take a young bull that has no defects and remove sin from the holy place.

19The priest must take some blood from the offering for sin and put it on the doorposts of the temple, on the four corners of the ledge of the altar, and on the doorposts of the gateways of the inner courtyard.

20You must do the same on the seventh day of the month for everyone who unintentionally does something wrong and is unaware of it. So you must make peace with the Lord for the temple.