Moses went down from the mountain to the people, and sanctified the people; and they washed their clothes.
TSK
TSK · Exodus 19:10
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For I am Yahweh your God. Sanctify yourselves therefore, and be holy; for I am holy: neither shall you defile yourselves with any kind of creeping thing that moves on the earth.
You shall do this to them, to cleanse them: sprinkle the water of cleansing on them, let them shave their whole bodies with a razor, and let them wash their clothes, and cleanse themselves.
"Say to the people, 'Sanctify yourselves against tomorrow, and you will eat flesh; for you have wept in the ears of Yahweh, saying, "Who will give us flesh to eat? For it was well with us in Egypt." Therefore Yahweh will give you flesh, and you will eat.
You shall wash your clothes on the seventh day, and you shall be clean; and afterward you shall come into the camp."
"Get up! Sanctify the people, and say, 'Sanctify yourselves for tomorrow, for Yahweh, the God of Israel, says, "There is a devoted thing in the midst of you, Israel. You cannot stand before your enemies until you take away the devoted thing from among you."
and said to them, "Listen to me, you Levites! Now sanctify yourselves, and sanctify the house of Yahweh, the God of your fathers, and carry out the filthiness out of the holy place.
For there were many in the assembly who had not sanctified themselves: therefore the Levites were in charge of killing the Passovers for everyone who was not clean, to sanctify them to Yahweh.
Now Joshua was clothed with filthy garments, and was standing before the angel.
let's draw near with a true heart in fullness of faith, having our hearts sprinkled from an evil conscience, and having our body washed with pure water,