Leviticus 14:5-6

5And the priest shall command them to kill one of the birds in an earthenware vessel over fresh
Or running; Hebrew living; also verses 6, 50, 51, 52
water.
6He shall take the live bird with the cedarwood and the scarlet yarn and the hyssop, and dip them and the live bird in the blood of the bird that was killed over the fresh water.
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