The giant sneered with contempt as he looked at the shepherd boy with his sling. Was this some sort of joke? Didn't they know who he was? Didn't they know that he was a force to be reckoned with? Did they really think this boy would be safe simply because of his youth?
His anger rose quickly. They would pay heavily for their mockery but first, he would deal with this impertinent boy who had the audacity to challenge him. The foolish boy! He didn't even have enough sense to come before him properly armed. It wouldn't have mattered if he had been. That paltry armor and sword of King Saul's wouldn't have been able to withstand him anyway. Oh how he would enjoy making them all pay for this! Their mocking would soon turn into screams for mercy but that would simply make victory all the sweeter for him.
Goliath made a fatal error that day out on the battlefield. All he saw was a boy with a sling and a stone. No one believed that David could defeat this giant with just a sling and a stone. Not even David believed that. Really? Really. David replied to the Philistine, "You come to me with sword, spear, and javelin, but I come to you in the name of the Lord of Heaven's Armies, the God of the armies of Israel, whom you have defied.
Today the Lord will conquer you, and I will kill you and cut off your head. And then I will give the dead bodies of your men to the birds and wild animals, and the whole world will know that there is a God in Israel!
And everyone assembled here will know that the Lord rescues his people, but not with sword and spear. This is the Lord's battle, and he will give you to us!
1 Samuel 17:45-47
Goliath made a fatal mistake that day. He underestimated his enemy. He only saw a boy with a sling and some stones. He either didn't see or chose to ignore the God who was standing beside that shepherd boy.
David on the other hand, did not underestimate his enemy. He knew that to go out there and face this enemy alone would be suicidal. There was no way he could possibly hope to conquer this enemy and if he failed, it would mean death for him, his brothers and many others as well as slavery.
David knew that the God who helped him kill the lion and the bear would not fail him now. David stepped out in faith and boldly declared that this was the Lord's battle. Taking up his weapons, he in essence placed them in God's hands that day. All it took was a single stone. A single stone from the sling of a boy who had faith in God.
We each have our own giants which we face. The enemy will taunt us. He either seems to tell us we're not strong enough or we're so strong we can easily defeat him without God. The enemy is a liar. We must never forget that. God on the other hand, cannot lie. He is the one we must listen too! God and only God is the Voice of Truth!