Leviticus 9:7-9

Revised Geneva Translation

⁷ Then Moses said to Aaron, “Draw near to the Altar and offer your Sin Offering, and your Burnt Offering, and make an atonement for yourself and for the people. Also, offer the offering of the people and make an atonement for them, as the LORD has commanded.”

⁸ So Aaron went to the Altar and killed the calf of the Sin Offering which was for himself.

⁹ And the sons of Aaron brought the blood to him. And he dipped his finger in the blood and put it upon the horns of the Altar and poured the rest of the blood at the foot of the Altar.