A person who is clean is to take hyssop, dip it in the water, and sprinkle the tent, all the furnishings, and the people who were there. He is also to sprinkle the one who touched a bone, a grave, a corpse, or a person who had been killed.

For when every command had been proclaimed by Moses to all the people according to the law, he took the blood of calves and goats, along with water, scarlet wool, and hyssop, and sprinkled the scroll itself and all the people,

And

For if the blood of goats and bulls and the ashes of a young cow, sprinkling those who are defiled, sanctify for the purification of the flesh,

But if we walk in the light as He Himself is in the light, we have fellowship with one another, and the blood of Jesus His Son cleanses us from all sin.

and from Jesus Christ, the faithful witness, the firstborn from the dead and the ruler of the kings of the earth.

To Him who loves us and has set us free from our sins by His blood,

Whiter

“Come, let us discuss this,”
says the Lord.
“Though your sins are like scarlet,
they will be as white as snow;
though they are as red as crimson,
they will be like wool.

to make her holy, cleansing her with the washing of water by the word.

Then one of the elders asked me, “Who are these people robed in white, and where did they come from?”

General references

Anyone who touches his bed is to wash his clothes and bathe with water, and he will remain unclean until evening.

Atonement will be made for you on this day to cleanse you, and you will be clean from all your sins before the Lord.

The priest is to take cedar wood, hyssop, and crimson yarn, and throw them onto the fire where the cow is burning.