 He trusted the word and promise of God. And he knew that God, who had delivered him time and time again, would deliver him even now when he faced Goliath. So we hear that Saul, Saul, when he's heard of David's offer to fight, doesn't think he's going to be able to do it. And Saul said to David, you are not able to go against this Philistine to fight with him.