1 Samuel 17
When the Philistines prepared for battle near the strategically located Valley of Elah, the Israelites assembled on the other side of the valley to face them. After the Philistines’ champion Goliath had challenged the Israelites for forty days to select a champion to fight him, young David, who had already been anointed as the next king of Israel by the prophet Samuel, slew him with a stone from his sling. The terrified Philistines fled, and the Israelites chased them as far as Gath and Ekron.
