Charles Spurgeon Commentary Leviticus 16:28

"And he that burneth them shall wash his clothes, and bathe his flesh in water, and afterward he shall come into the camp." — Leviticus 16:28 (ASV)

Everything that has to do with God's service must be clean and purified by fire, and purified by water. An atonement cannot be made by that which is itself defiled; it must be without spot, or wrinkle, or any such thing before it can put sin away; this is the virtue of Christ's atonement, for he was altogether without sin of any kind.