Leviticus 14:51

Then he shall take the cedar wood and the hyssop and the scarlet string, with the live bird, and dip them in the blood of the slain bird as well as in the running water, and sprinkle the house seven times.

Psalm 51:7

Purify me with hyssop, and I shall be clean;
Wash me, and I shall be whiter than snow.

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