Leviticus 8:14-16

New Catholic Bible

¹⁴ The Sin Offering. He then had the young bull of the sin offering brought to him, and he had Aaron and his sons place their hands on the head of the young bull of the sin offering. ¹⁵ Moses slew it, took some of its blood, and with his finger put some of it on the horns around the altar to purify it. He poured the rest of the blood at the base of the altar and consecrated it, making atonement for it.

¹⁶ He took all of the fat that was around the entrails, the lobe of the liver, the two kidneys with their fat, and Moses burned all of them upon the altar.