Leviticus 9:10

6 And Moses said, “This is what the LORD has commanded you to do, so that the glory of the LORD may appear to you.”

7 Then Moses said to Aaron, “Approach the altar and sacrifice your sin offering and your burnt offering to make atonement for yourself and for the people. And sacrifice the people’s offering to make atonement for them, as the LORD has commanded.”

8 So Aaron approached the altar and slaughtered the calf as a sin offering for himself.

9 The sons of Aaron brought the blood to him, and he dipped his finger in the blood and applied it to the horns of the altar. And he poured out the rest of the blood at the base of the altar.

10 On the altar he burned the fat, the kidneys, and the lobe of the liver from the sin offering, as the LORD had commanded Moses.

11 But he burned up the flesh and the hide outside the camp.

12 Then Aaron slaughtered the burnt offering. His sons brought him the blood, and he sprinkled it on all sides of the altar.

13 They brought him the burnt offering piece by piece, including the head, and he burned them on the altar.

14 He washed the entrails and the legs and burned them atop the burnt offering on the altar.

Read all of Leviticus 9