valley
Joel 3:2
3:2 valley of Jehoshaphat. The valley of Jehoshaphat is probably where the confederation of Ammon, Moab, and Edom were miraculously defeated when they came against Judah and King Jehoshaphat in the general region between Jerusalem and the Dead Sea. It has also been suggested as the valley between Mount Zion and Mount Olivet. The exact location is unknown, but evidently the whole region will be filled with armies when God gathers all nations there, probably on their way to Armageddon (note II Chronicles 20). It may be centered around the valley of Berachah (II Chronicles 20:26).