When the news came to Joab—for Joab had supported Adonijah though he had not supported Absalom—Joab fled to the tent of the Lord and grasped the horns of the altar.
And the multitude of all the nations that fight against Ariel, all that fight against her and her stronghold and who distress her, shall be like a dream, a vision of the night.
And you shall take some of its blood and put it on the four horns of the altar and on the four corners of the ledge and upon the rim all around; thus you shall purify it and make atonement for it.
The sons of Aaron presented the blood to him, and he dipped his finger in the blood and put it on the horns of the altar, and the rest of the blood he poured out at the base of the altar.