Wikipedia
Ezov is the Classical Hebrew name of a plant mentioned in the Bible in the context of religious rituals. In some English-language Bibles, the word is transliterated as ezob.
The Septuagint translates the name as ὕσσωπος hyssop, and English translations of the Bible often follow this rendering. The Hebrew word אזוב and the Greek word ὕσσωπος probably share a common (unknown) origin.
In the Bible, ezov is described as a small plant found on or near walls, with an aromatic odour. Maimonides, Saadia Gaon and earlier Jewish commentators identified ezov with za'atar, which may refer to various local herbs, including marjoram, oregano and thyme, which have aromatic and cleansing properties, grow wild in Israel, and can easily be bunched together to be used for sprinkling.
The book of John in the New Testament (written in Koine Greek) mentions that hyssop was used, along with vinegar, to alleviate the thirst of Jesus, during his Passion. Matthew and Mark mention the occasion but refer to the plant using the general term κάλαμος (kálamos), which is translated as "reed" or "stick." Origanum has short stems and some scholars say it would have been too short to reach the mouth of Jesus during crucifixion. A number of scholars have proposed that ezov is the caper plant (Capparis spinosa), which the Arabs call azaf. The caper is native throughout the Mediterranean Basin, and considered to have cleansing properties.