Leviticus 9:10-12

The Voice

¹⁰ After this he removed the fat, the kidneys, and the lobe of the liver of the purification offering and offered them as smoke on the altar, exactly as the Eternal had commanded Moses. ¹¹ He took what remained of the meat and skin and burned it up in a fire outside the camp.

¹² Then Aaron slaughtered the burnt offering and his sons brought him the blood, and he splattered it against the sides of the altar.