Is often mentioned in Scripture, and is directed to be used in the sprinklings which made part of the Jewish ceremonial law, Exodus 12:22 Leviticus 14:4-6 Psalm 51:9 Hebrews 9:19 . It is some low shrub, which is contrasted with the lofty cedar, 1 Kings 4:33 . In John 19:29 , the soldiers are said to have "filled a sponge with vinegar, and put it upon hyssop," that is, upon a rod of hyssop, two feet or more in length, which was long enough to enable one to reach the mouth of a person on the cross. Many different plants have been taken for the hyssop of Scripture, and among others, the caper-plant.