But David knows better. While Goliath may look like a giant and act like a giant, in contrast to the living God, he is small. David has a right view of God and therefore a right view of the circumstances. He sees Goliath as one who is defying the armies of the living God (1 Sam. 17:26). He confidently appears before Goliath in his shepherd's clothes, armed with only his staff, five stones, and a sling. His confidence is not in what he has but in who is with him (v. 45).
What "Goliath" are you facing right now? It may be an impossible situation at work, a financial difficulty, or a broken relationship. With God, all things are small in comparison. Nothing is too big for Him. The words of the hymnwriter Charles Wesley remind us: "Faith, mighty faith, the promise sees, and looks to that alone; laughs at impossibilities, and cries it shall be done". God is able to deliver you if that's His desire, and He may do so in ways you don't expect. Don't tell God how big your giants are. Tell your giants how big your God is.