Leviticus 9:7-11

Moses instructed Aaron, “Approach the Altar and sacrifice your Absolution-Offering and your Whole-Burnt-Offering. Make atonement for yourself and for the people. Sacrifice the offering that is for the people and make atonement for them, just as GOD commanded.” Aaron approached the Altar and slaughtered the calf as an Absolution-Offering for himself. Aaron’s sons brought the blood to him. He dipped his finger in the blood and smeared some of it on the horns of the Altar. He poured out the rest of the blood at the base of the Altar. He burned the fat, the kidneys, and the lobe of the liver from the Absolution-Offering on the Altar, just as GOD had commanded Moses. He burned the meat and the skin outside the camp.