'Atonement' in the Bible

And you shall take some of its blood and put it on the four horns [of the altar of burnt offering] and on the four corners of the ledge and on the border all around; thus you shall cleanse it (from sin) and make atonement for it.

For seven days they shall make atonement for the altar and purify it; so the priests shall consecrate it [to receive offerings].

and [you shall offer] one sheep out of every 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 [those who brought] them,” says the Lord God.

It shall be the prince’s responsibility 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 prepare and provide the sin offering, the grain offering, the burnt offering and the peace offerings, to make atonement for the house of Israel.”

You shall do this on the seventh [day] of the month for everyone who goes astray [and sins through error or ignorance] and for him who is naive; so shall you make atonement for the temple (house).