Kedron

the valley, now quite narrow, between the Mount of Olives and
Mount Moriah. The upper part of it is called the Valley of
Jehoshaphat. The LXX., in 1 Kings 15:13, translate "of the
cedar." The word means "black," and may refer to the colour of
the water or the gloom of the ravine, or the black green of the
cedars which grew there. John 18:1, "Cedron," only here in New
Testament. (See KIDRON T0002187.)