2 Chronicles 20:1-3
The Lord Gives Jehoshaphat Military Success
20:1 Later the Moabites and Ammonites, along with some of the Meunites, attacked Jehoshaphat.
20:2 Messengers arrived and reported to Jehoshaphat, “A huge army is attacking you from the other side of the Dead Sea, from the direction of Edom. Look, they are in Hazezon Tamar (that is, En Gedi).”
20:3 Jehoshaphat was afraid, so he decided to seek the Lord’s advice. He decreed that all Judah should observe a fast.