David said to Saul, Your Majesty, no one should be afraid of this Philistine! I will go and fight him. I have killed lions and bears, and I will do the same to this heathen Philistine, who has defied the army of the living God. The Lord has saved me from lions and bears; he will save me from this Philistine.
1 Samuel 17:32, 36-37 (GNT)
Biblical Truth: Our previous experiences in trusting God are an encouragement that prepares us when undertaking new battles for Him.