2 Chronicles 20:2-4

Then it was reported to Jehoshaphat, “A great multitude has come against you from beyond the [Dead] Sea, out of Aram (Syria); and behold, they are in Hazazon-tamar (that is, Engedi).” Then Jehoshaphat was afraid and set himself [determinedly, as his vital need] to seek the LORD; and he proclaimed a fast throughout all Judah. So [the people of] Judah gathered together to seek help from the LORD; indeed they came from all the cities of Judah to seek the LORD [longing for Him with all their heart].