Exodus 29:10-12

Darby Translation

¹⁰ And thou shalt present the bullock before the tent of meeting; and Aaron and his sons shall lay their hands upon the head of the bullock;

¹¹ and thou shalt slaughter the bullock before Jehovah, at the entrance of the tent of meeting;

¹² and thou shalt take of the blood of the bullock, and put it on the horns of the altar with thy finger, and shalt pour all the blood at the bottom of the altar.