Patrick Morley of Man in the Mirror Ministries said it best, "To have the Lord on your side is better than having the right strategy." When we find ourselves in trouble, there is a tendency to depend on our own strengths to resolve the issue then turn to the Lord when we can't go any further.
In 2 Chronicles 13, Abijah leads the army of Judah against an army twice the size of his. That other army is the rest of Israel coming to wipe Judah off the map, and they were led by Jeroboam who had taken the throne in a coup from the rightful king of Israel.
The great thing about this story is that Abijah reminds us all about the covenant God made with King David, and reminds us all that even though this other army outnumbers his 2-to-1 it isn't part of God's covenant. Immediately Abijah's army cries out to God and the battle is their's. All the glory goes to God. The moral of the story is that we need to remember God's promise to us, turn to Him first in our battles, and humbly give God the glory.
It is easy for us to believe that our own battles are not big enough to seek God for guidance, wisdom, and success, that we aren't fighting an Abijah-sized battle. However, God wants us all to turn to him for everything so that He can pour out His blessings on us. All of our battles are big enough to bring to God. (Romans 8:26, 35-39)