Exodus 29:15-19

“Take one ram, and Aaron and his sons are to lay their hands on the ram’s head.  You are to slaughter the ram, take its blood, and splatter it on all sides of the altar. Cut the ram into pieces. Wash its entrails and legs, and place them with its head and its pieces on the altar. Then burn the whole ram on the altar; it is a burnt offering to the LORD. It is a pleasing aroma,  a food offering to the LORD. “You are to take the second ram, and Aaron and his sons must lay their hands on the ram’s head.