THE TORRENT VALLEY OF KIDRON.

The Kidron is a deep Valley that separates Jerusalem from the Mount of Olives and runs, from the vicinity of Jerusalem, South-East-course, and then South-Ward along the city, extending through the Wilderness of Judah, meeting the Dead Sea below the mouth of the Jordan River. The Valley and the Mount of Olives lies East of Jerusalem while the old Walled City of Jerusalem is on its West.
The name comes from a root word meaning "black, dirty, dark, not clear, turbid," or one meaning "glow, burn, radiate heat," because the stream at its starting point is thick and opaque, and at the end is clear and temperate.
The Kidron is waterless even in winter, except during times of heavy rain. The Valley and the Brook running through it, starts some distance to the North of Jerusalem's Walls. At first the Valley presents itself so broad and shallow, then, it continues to narrow and deepen. By the time it is opposite to Stephen's Gate near the former Temple area, it is approximately 30m (100ft) deep and 120m (400ft) wide.
To the South of the former Temple area the Kidron is joined by the Tyropean Valley and the Hinnon Valley respectively. From then on the Kidron continues South-East-Ward across the arid Wilderness of Judah to the Dead Sea.
On the Eastern slope of the Valley, opposite Jerusalem, on the steep and rocky slopes, are many ancient rock-cut Tombs where certain royal officials, and possibly some of Judah's kings may have been buried.
On the Western slope of the Valley, about midway between the former Temple area and the junction of the Tyropean and the Kidron valleys, is the Spring of Gihon, ancient Jerusalem's primary water supply. Not far from this Spring the Kidron Valley widens forming an open space. This Spring flowed into the Valley, but with the building of Hezekiah's tunnel (2Kings20) its waters were diverted to the Pool of Siloam inside the city.
This Valley is first mentioned in the Scripture as the place King David crossed (the Eastern boundary of the city), as he fled Jerusalem because of the rebellion of his son Absalom (2Samuel15), and crossed the Kidron on foot. For cursing David on that occasion, Solomon later restricted Shimei to Jerusalem, not permitting him to cross the Kidron under pain of death (1King2).
During the Monarchy, the Kidron Valley was identified as the place of the King's Garden (2King25; Nehemiah 3). Adjacent to the Temple Mount, the Kidron (Valley/Brook/Field) served as a convenient place where images and altars of entities were taken to be destroyed by reformer kings: Asa (1King15), Hezekiah (2Chronicles 15-29-30), and Josiah (2King23). This made the Kidron Valley an unclean area and it is therefore significant that Jeremiah's prophecy pointed to a Time when, by contrast, "all the terraces as far as the Torrent Valley of Kidron" would be "something Holy to GOD."(Jeremiah31)
The Kidron is mentioned only once in the New Testament. After the farewell discourse, JESUS along with His Disciples went "across the Kidron Valley to a place where there was a Garden, which He and His Disciples entered" (John 18).
John 15 says, "If the World hates you, just remember that the World has hated Me first. If you belonged to the World, then the World would love you as its own. But I chose you from this World, and you do not belong to it; that is Why the World hates you."(18-19)
John 16 says, "I did not tell you these things at the beginning, for I was with you. But now I am going to Him Who sent Me, yet none of you asks Me Where I am going. And now that I have told you, your hearts are full of sadness. But I am telling you the Truth: it is better for you that I go away, because if I do not go, the Helper will not come to you. But if I do go away, then I will send Him to you. And when He comes, He will prove to the people of the World that they are wrong about 'sin' and about 'what is right' and about 'God's Judgment.' (4-8) "The time is coming, and is already here, when all of you will be scattered, each of you to your own home, and I will be left alone, because the Father is with Me. The World will make you suffer. But Be Brave! I have defeated the World!" (32-33)
John 17 says, After JESUS finished saying this, He looked up to Heaven and said:
"FATHER, the HOUR HAS COME. Give Glory to Your Son, so that the Son may give Glory to You. For You gave Him AUTHORITY OVER ALL PEOPLE, so that He might give ETERNAL LIFE TO ALL THOSE YOU GAVE HIM. And eternal life MEANS TO KNOW YOU, the ONLY TRUE GOD, and to KNOW JESUS CHRIST, Whom You sent. I HAVE SHOW YOUR GLORY ON EARTH: I HAVE FINISHED THE WORK YOU GAVE ME TO DO." (1-4)
"FATHER! GIVE ME GLORY IN YOUR PRESENCE NOW, the SAME GLORY I HAD WITH YOU BEFORE THE WORLD WAS MADE." (5)       ....
John 18 says,  After JESUS had said this Prayer, He left with His Disciples and went across Kidron Brook. There was a Garden in that Place, and JESUS and His Disciples went in." (1)
Judas the Traitor, knew where the Kidron Book was, because many times JESUS had met there with His Disciples. So Judas went to the Garden in Kidron, taking with him a group of Roman soldiers, and some Temple guards sent by the Chief Priests and the Pharisees; they were armed and carried lanterns and torches. JESUS KNEW EVERYTHING THAT WAS GOING TO HAPPEN TO HIM, so He stepped forward and asked them, "WHO IS IT YOU ARE LOOKING FOR?" (2-4)        ....