Sometimes life feels like "a vast army marching against me." That was the backdrop to an amazing story of victory in Jehoshaphat's life.  His immediate response: he was terrified.  Next, he begged the Lord for guidance. Then he called everyone else to come alongside by fasting.
Jehoshaphat's prayer is a powerful proclamation: You alone are God, You rule, You are powerful and mighty, No one can stand against You.  Then he recounts God's victories for His people.

God responds immediately by His Spirit coming over one of the people who proclaims God's intention: "Don't be afraid or discouraged by this mighty army.  The battle is NOT yours, but is it Mine!"  Then He sets forth the battle plan:  March out before this mighty army, take your battle positions but DON'T fight, stand still and watch the Lord's victory."

The next morning as Jehoshaphat and his men go out for battle, he reminds them to believe in the Lord their God so that they will stand firm and believe in His Word so they will succeed.  This is truly a formula for victory.

The procession into battle is led by singers who lead by praising God for His holy splendor!
              "Give thanks to the Lord, His faithful love endures forever"

The "battle" that ensues is crazy!  The moment they begin to sing, God causes the enemy armies to begin fighting against themselves! When Jehoshaphat and his army reach the lookout point, all they see is dead bodies in the valley below!  It says that not a single one of the enemy escaped.  Then there is so much plunder, they name it the Valley of Blessing.  

What was the word that spread to the surrounding nations?  That the Lord himself had fought against the enemies of Israel.

Next time I am feeling like the enemy is too much or the problem too vast, is there really any grounds for worry?  Absolutely not. Believe in the Lord my God. Believe His Word. Let Him do the fighting.  Approach it with singing!