Leviticus 9:8

Lev 9:8 Aaron therefore went unto the altar, and slew the calf of the sin offering, which [was] for himself.

Ver. 8. Went unto the altar, ] i.e., The brazen altar; for he had not yet access to the altar of incense. We must slay our corruptions before we present our supplications, wash our hearts from wickedness, and then compass God’s altar.