then shall the priest command that there be brought for him that shall be cleansed two living birds that are clean, and cypress wood, and a piece of purple cloth and hyssop.

And a clean person shall take Hyssop and dip it in the water, and sprinkle it upon the tent and upon all the vessels and on the souls that were there, and upon him that touched a bone or a slain person or a dead body or a grave.

For when all the commandments were read of Moses unto all the people, he took the blood of calves, and of goats, with water and purple wool and hyssop, and sprinkled both the book, and all the people,

And

For if the blood of oxen, and of goats, and the ashes of a heifer, when it was sprinkled, purified the unclean, as touching the purifying of the flesh:

but and if we walk in light even as he is in light, then have we fellowship together, and the blood of Jesus Christ his son cleanseth us from all sin.

and from Jesus Christ which is a faithful witness, and first begotten of the dead: and Lord over the kings of the earth. Unto him that loved us and washed us from our sins in his own blood,

Whiter

And so though your sins be like to purple, they shall be made as white as snow; and though they be as red as scarlet, they shall be made like white wool.

to sanctify it, and cleansed it in the fountain of water through the word,

And one of the elders answered, saying unto me, "What are these which are arrayed in long white garments, and whence came they?"

General references

He that toucheth his couch, shall wash his clothes and bathe himself with water, and be unclean until the even.

for that day shall an atonement be made for you to cleanse you from all your sins before the LORD, and ye shall be clean.

And let the priest take cypress wood, and Hyssop and purple cloth, and cast it upon the cow as she burneth.