Think of the life experiences of Israel’s shepherd king, David, and his 23rd Psalm. David, when a young man, went to the battle front and confronted a seasoned warrior giant named Goliath. David was armed with only a sling, five stones, and his belief that the God of Israel would, “deliver thee [Goliath] into mine hand” (I Samuel 17:46).
Later he led Israel’s forces into battl...