1 Samuel 17:26 (NKJV) Then David spoke to the men who stood by him, saying, "What shall be done for the man who kills this Philistine and takes away the reproach from Israel? For who is this uncircumcised Philistine, that he should defy the armies of the living God?"
You may be familiar with this old tale of a prison escape. An inmate received a cake with a file in it. He used it to file the bars of his prison cell and escape. It makes me think of a story in the Bible. A true story, not a tale---God delivers a weapon with a packed lunch.
This man was a giant compared to any man in their own army. The Bible says Israel was dismayed and greatly afraid. Jesse, David’s father, sent David with a packed lunch and some snacks for his older brothers who had gone to battle. For forty days, Goliath had been challenging Israel to battle. David arrived on the scene to hear him. When David heard the man, he said, "who is this uncircumcised Philistine, that he should defy the armies of the living God?" David knew this giant wasn't a problem for God.
David was God’s secret weapon. He went on to kill the man and give Israel victory in this battle. The Bible says, “The race is not to the swift, Nor the battle to the strong, Nor bread to the wise, Nor riches to men of understanding, Nor favor to men of skill; But time and chance happen to them all” (Ecc. 9:11). Whenever I face a battle of my own, I have to remind myself, I do not need to be bigger or more powerful, I do not have to be wiser or better educated, I do not even have to be wealthy. This is because God only needs a willing person to work through.
If you have called on Jesus to be your Lord, He can work through you too. God wants you to win your battles (see 1 Cor. 15:57,58). Put your trust in God instead of trusting yourself.
If you are like me, you sometimes feel a little under-qualified. When I begin to feel this way, I just remind myself, I too am God’s secret weapon.