Psalm 51:7

Create in Me a Clean Heart, O God

⁷ _g Purge me with hyssop, and I shall be clean;
Wash me, and I shall be _h whiter than snow.

Cross References
Exodus 12:22
And you shall take a bunch of hyssop, dip it in the blood that is in the basin, and strike the lintel and the two doorposts with the blood that is in the basin. And none of you shall go out of the door of his house until morning.
Leviticus 14:4
Then the priest shall command to take for him who is to be cleansed two living and clean birds, cedar wood, scarlet, and hyssop.
Numbers 19:18
A clean person shall take hyssop and dip it in the water, sprinkle it on the tent, on all the vessels, on the persons who were there, or on the one who touched a bone, the slain, the dead, or a grave.
Hebrews 9:19
For when Moses had spoken every precept to all the people according to the law, he took the blood of calves and goats, with water, scarlet wool, and hyssop, and sprinkled both the book itself and all the people.
Cross References
Isaiah 1:18
Come now, and let us reason together," Says the LORD, "Though your sins are like scarlet, They shall be as white as snow; Though they are red like crimson, They shall be as wool.