'Atonement' in the Bible

You shall take some of its blood and put it on its four horns and on the four corners of the ledge and on the border round about; thus you shall cleanse it and make atonement for it.

For seven days they shall make atonement for the altar and purify it; so shall they consecrate it.

and one sheep from each flock of two hundred from the watering places of Israel—for a grain offering, for a burnt offering and for peace offerings, to make atonement for them,” declares the Lord God.

It shall be the prince’s part to provide the burnt offerings, the grain offerings and the drink offerings, at the feasts, on the new moons and on the sabbaths, at all the appointed feasts of the house of Israel; he shall provide the sin offering, the grain offering, the burnt offering and the peace offerings, to make atonement for the house of Israel.”

Thus you shall do on the seventh day of the month for everyone who goes astray or is naive; so you shall make atonement for the house.