The greatest evidence that the Bible works are the evidence of a changed life.
Trust in the LORD with all thine heart; and lean not unto thine own understanding.
The powers that be are ordained of God.
Elijah had the hand of the Lord upon him because he honored Biblical authority, he humbled himself before God and prepared his heart to obey God's word.
Our dreams, even if they are for God, must die because once they die, God will replace those dreams and desires with something better that came from God.
Jonathan not only got the victory over the Philistines, he received victory in submission.