1 Samuel 17:45 (KJV)
Then said David to the Philistine, Thou comest to me with a sword, and with a spear, and with a shield: but I come to thee in the name of the LORD of hosts, the God of the armies of Israel, whom thou hast defied.
By faith, David boldly approached Goliath armed with only his shepherd’s staff, sling and five smooth stones. God enabled David to defeat the Philistine giant with just one shot.
When the giants (problems and obstacles) of life start to overwhelm you, remember that through the power of God, giants do fall.