And he shall kill the bullock before the LORD: and the priests, Aaron's sons, shall bring the blood, and sprinkle the blood round about upon the altar that is by the door of the tabernacle of meeting.
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George Leo Haydock
He, by the hands of the priests, (chap. x. 1,) as the Septuagint express it, "they shall immolate "(Menochius) though we might infer from this text, that the person who offered the victim, had to slay it; (Calmet) while the priests alone could pour the blood upon and around the altar. Without the effusion of blood remission is not made, Hebrews ix. 22. (Haydock)