Exodus 30:18-21

18“You shall also make a abasin of bronze, with its stand of bronze, for washing. bYou shall put it between the tent of meeting and the altar, and you shall put water in it, 19with which Aaron and his sons cshall wash their hands and their feet. 20When they go into the tent of meeting, or when they come near the altar to minister, to burn a food offering
Or  an offering by fire
to the Lord, they shall wash with water, so that they may not die.
21They shall wash their hands and their feet, so that they may not die. It shall ebe a statute forever to them, even to him and to his offspring throughout their generations.”

Exodus 40:12

12 fThen you shall bring Aaron and his sons to the entrance of the tent of meeting and shall wash them with water

Leviticus 8:6

6And Moses brought Aaron and his sons and washed them with water.

Leviticus 14:8

8And he who is to be cleansed gshall wash his clothes and shave off all his hair and bathe himself in water, and he shall be clean. And after that he may come into the camp, but hlive outside his tent seven days.

Deuteronomy 23:11

11but when evening comes, he shall ibathe himself in water, and as the sun sets, he may come inside the camp.

Ezekiel 36:25

25 jI will sprinkle clean water on you, and you shall be clean from kall your uncleannesses, and lfrom all your idols mI will cleanse you.

John 13:8-10

8 nPeter said to him, “You shall never wash my feet.” Jesus answered him, oIf I do not wash you, you have no share with me.” 9Simon Peter said to him, “Lord, not my feet only but also my hands and my head!” 10Jesus said to him, “The one who has bathed does not need to wash, pexcept for his feet,
Some manuscripts omit  except for his feet
but is completely clean. And ryou
The Greek words for  you in this verse are plural
are clean, tbut not every one of you.”
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