When the duel started David quickly pulled out his sling shot and fired rocks at Goliath giving him no time to use his sword.
David quickly rushed over to the hurt Goliath, grabbed his sword then sliced off his head.
When goliath saw David approach him he was mad because he wanted a much larger and stronger opponent but he only saw a little David but that didn't get to David because he was convinced God was there to help him win.
You may be bigger and stronger than me but I have God with me which is stronger than anything.
Who is this little man? I said to bring the strongest Isrealite you could find