Números 8:21

21 Os levitas se purificaram e lavaram as suas roupas, e Arão os apresentou por oferta movida diante do Senhor e fez expiação por eles, para purificá-los.

21 And the Levites were made clean from sin, and their clothing was washed, and Aaron gave them for a wave offering before the Lord; and Aaron took away their sin and made them clean.