TSK · Exodus 19:10

Then Moses went down from the mountain to the people and sanctified the people, and they washed their clothes.

for I am the LORD your God and you are to sanctify yourselves and be holy because I am holy. You must not defile yourselves by any of the swarming things that creep on the ground,

And do this to them to purify them: Sprinkle water of purification on them; then have them shave all their body and wash their clothes, and so purify themselves.

“And say to the people,‘Sanctify yourselves for tomorrow, and you will eat meat, for you have wept in the hearing of the LORD, saying,“Who will give us meat to eat, for life was good for us in Egypt?” Therefore the LORD will give you meat, and you will eat.

You must wash your clothes on the seventh day, and you will be ceremonially clean, and afterward you may enter the camp.’”

Get up! Ritually consecrate the people and tell them this:‘Ritually consecrate yourselves for tomorrow, because this is what the LORD God of Israel has said,“You are contaminated, O Israel! You will not be able to stand before your enemies until you remove what is contaminating you.”

He said to them:“Listen to me, you Levites! Now consecrate yourselves, so you can consecrate the temple of the LORD God of your ancestors! Remove from the sanctuary what is ceremonially unclean!

Because many in the assembly had not consecrated themselves, the Levites slaughtered the Passover lambs of all who were ceremonially unclean and could not consecrate their sacrifice to the LORD.

Now Joshua was dressed in filthy clothes as he stood there before the angel.

let us draw near with a sincere heart in the assurance that faith brings, because we have had our hearts sprinkled clean from an evil conscience and our bodies washed in pure water.