Numbers 8:21

So the Levites purified themselves and washed their garments; and Aaron presented them as a gift before the Lord, and Aaron made atonement for them to purify them.

And the Levites were purified, and they washed their clothes; and Aaron offered them as an offering before the Lord; and Aaron made an atonement for them to cleanse them.

The Levites purified themselves from sin, and they washed their clothes; and Aaron offered them for a wave offering before Yahweh and Aaron made atonement for them to cleanse them.