2 Chronicles 20:1-4

After this the Moabites and Ammonites, and with them some of the Meunites, came against Jehoshaphat for battle. Some men came and told Jehoshaphat, “A great multitude is coming against you from Edom, from beyond the sea; and, behold, they are in Hazazon-tamar” (that is, Engedi). Then Jehoshaphat was afraid and set his face to seek the LORD, and proclaimed a fast throughout all Judah. And Judah assembled to seek help from the LORD; from all the cities of Judah they came to seek the LORD.