1 Samuel 17:33-37

33 And Saul said to David, “You are not able to go against this Philistine to fight with him; for you are a youth, and he a man of war from his youth.” 34 But David said to Saul, “Your servant used to keep his father’s sheep, and when a lion or a bear came and took a lamb out of the flock, 35 I went out after it and struck it, and delivered the lamb from its mouth; and when it arose against me, I caught it by its beard, and struck and killed it. 36 Your servant has killed both lion and bear; and this uncircumcised Philistine will be like one of them, seeing he has defied the armies of the living God.” 37 Moreover David said, “The LORD, who delivered me from the paw of the lion and from the paw of the bear, He will deliver me from the hand of this Philistine.” And Saul said to David, “Go, and the LORD be with you!”

What crisis are you up against today? As bad as it may be, it probably isn't the worst thing you have ever faced. Chances are, at some point in your life, the Lord has already delivered you from the "paw of the lion" and "the paw of the bear". Memories of these events can be used to give you confidence and boldness against today's "uncircumsized Philistine".

Because Goliath was fighting against God, he had no chance, yet he had somehow managed to paralyze the entire army of Israel with fear, with his size and bravado. Don't let your Philistine accomplish that in you today. Remember, like David did, that you have defeated stronger foes than it with God's help, and also that like Goliath, it too is fighting against God as you call upon Him.