Leviticus 4:16-18

16The anointed priest shall bring some of the bull’s blood to the tabernacle of meeting.

17Then the priest shall dip his finger in the blood and sprinkle it seven times before the Lord, in front of the veil.

18And he shall put some of the blood on the horns of the altar which is before the Lord, which is in the tabernacle of meeting; and he shall pour the remaining blood at the base of the altar of burnt offering, which is at the door of the tabernacle of meeting.