Exodus 30:18

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,

Numbers 19:2-9

2“This is the statute of the law that the Lord has commanded: Tell the people of Israel to bring you a red heifer without defect, in which there is no blemish, cand on which a yoke has never come. 3And you shall give it to Eleazar the priest, and dit shall be taken outside the camp and slaughtered before him. 4And Eleazar the priest shall take some of its blood with his finger, and esprinkle some of its blood toward the front of the tent of meeting seven times. 5And the heifer shall be burned in his sight. fIts skin, its flesh, and its blood, with its dung, shall be burned. 6And the priest shall take gcedarwood and hyssop and scarlet yarn, and throw them into the fire burning the heifer. 7Then the priest hshall wash his clothes and bathe his body in water, and afterward he may come into the camp. But the priest shall be unclean until evening. 8 iThe one who burns the heifer jshall wash his clothes in water and bathe his body in water and shall be unclean until evening. 9And a man who is clean shall gather up kthe ashes of the heifer and deposit them outside the camp in a lclean place. And they shall be kept for the water for mimpurity for the congregation of the people of Israel; it is a sin offering.
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