Ezekiel 45:18-20

18“This is what the Sovereign Lord says: In early spring, on the first day of each new year, sacrifice a young bull with no defects to purify the Temple.

19The priest will take blood from this sin offering and put it on the doorposts of the Temple, the four corners of the upper ledge of the altar, and the gateposts at the entrance to the inner courtyard.

20Do this also on the seventh day of the new year for anyone who has sinned through error or ignorance. In this way, you will purify the Temple.