Bible Verses About Sin Offering: In every case poured at the foot of the altar of burnt offering

And the priest shall put of the blood upon the horns of the altar of sweet incense before Jehovah, which is in the tent of meeting; and all the blood of the bullock shall he pour out at the base of the altar of burnt-offering, which is at the door of the tent of meeting.

And the sons of Aaron presented the blood unto him; and he dipped his finger in the blood, and put it upon the horns of the altar, and poured out the blood at the base of the altar:

and the land is defiled: therefore I do visit the iniquity thereof upon it, and the land vomiteth out her inhabitants.

Therefore shall ye keep my charge, that ye practise not any of these abominable customs, which were practised before you, and that ye defile not yourselves therein: I am Jehovah your God.