Bible Verses About Purification: Figurative

I will wash mine hands in innocency: so will I compass thine altar, O LORD:

Purge me with hyssop, and I shall be clean: wash me, and I shall be whiter than snow.

Then will I sprinkle clean water upon you, and ye shall be clean: from all your filthiness, and from all your idols, will I cleanse you.

Let us draw near with a true heart in full assurance of faith, having our hearts sprinkled from an evil conscience, and our bodies washed with pure water.