Leviticus 4:30
And the priest shall take of the blood thereof with his finger, and put it upon the horns of the altar of burnt offering, and shall pour out all the blood thereof at the bottom of the altar.
Cross-references
Leviticus 4:25 prescribes the same blood-on-horns ritual for a leader's sin offering, showing uniform procedure.
Leviticus 4:35 continues the same sin offering ritual here — the fat burning and atonement formula that immediately follows.
Leviticus 4:6 prescribes sprinkling blood before the curtain for the high priest's sin offering — different location but same chapter's sin offering instructions.
Leviticus 4:34 repeats the same blood application for a lamb sin offering, reinforcing the standard ritual for commoners.
Leviticus 8:15 uses the same blood application for altar consecration — purifying the altar with blood on horns and at base.
Leviticus 9:9 repeats the same action for Aaron's own sin offering on his ordination day.
Leviticus 5:9 for a poor person's offering sprinkles blood on the side of the altar, not horns — still pours rest at base.
Romans 8:3 explains that the law (including sin offerings) could not condemn sin, but God sent Christ to do what the ritual blood could not.
Exodus 29:12 describes the same ritual action for consecrating priests — blood on horns and at base — showing a consistent pattern.
Ezekiel 43:20 mirrors this blood application to altar horns, linking the sin offering ritual to the cleansing of the future temple.