'Atonement' in the Bible

And Aaron and his sons are making perfume on the altar of the burnt-offering, and on the altar of the perfume, for all the work of the holy of holies, and to make atonement for Israel, according to all that Moses servant of God commanded.

And David giveth to Solomon his son the pattern of the porch, and of its houses, and of its treasures, and of its upper chambers, and of its innermost chambers, and of the house of the atonement;