Exodus 29:4

4You shall bring Aaron and his sons to the entrance of the tent of meeting and awash them with water.

Exodus 30:19-21

19with which Aaron and his sons bshall 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 dbe a statute forever to them, even to him and to his offspring throughout their generations.”

Exodus 40:12

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

Leviticus 6:27

27Whatever touches its flesh shall be holy, and when any of its blood is splashed on a garment, you shall wash that on which it was splashed in a holy place.

Leviticus 13:54

54then the priest shall command that they wash the thing in which is the disease, and he shall shut it up for another seven days.

Leviticus 13:58

58But the garment, or the warp or the woof, or any article made of skin from which the disease departs when you have washed it, shall then be washed a second time, and be clean.”

Leviticus 14:8-9

8And he who is to be cleansed fshall 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 glive outside his tent seven days. 9And hon the seventh day he shall shave off all his hair from his head, his beard, and his eyebrows. He shall shave off all his hair, and then he ishall wash his clothes and bathe his body in water, and he shall be clean.

Leviticus 15:16

16 j“If a man has an emission of semen, he shall bathe his whole body in water and be unclean until the evening.

Leviticus 16:4

4He shall put on kthe holy linen coat and shall have the linen undergarment on his body, and he shall tie the linen sash around his waist, and wear the linen turban; these are the holy garments. lHe shall bathe his body in water and then put them on.

Leviticus 16:24

24And he shall bathe his body in water in a holy place and put on his garments and come out and moffer his burnt offering and the burnt offering of the people and make atonement for himself and for the people.
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