In 1 Samuel 17, we have the account of David killing Goliath. Goliath was a giant Philistine warrior. He came out of camp every day for forty days and challenged any Israelite warrior to meet him in battle. None of the Israelites would do so. David heard the challenge and wanted to do something about it. Eventually, he went out to meet Goliath with nothing but his sling and some small stones. He brought Goliath down with an accurate rock thrown into Goliath’s forehead.
Unbelievers say this story is ridiculous. They laugh to think that a young man could be so accurate with a sling in the heat of such a moment. The Bible tells of 700 Benjamites who could sling stones at a hair’s breadth and not miss (Judges 20:16). “There was a regiment of slingers in the Assyrian army, and another in the Egyptian army, and they could cast a stone with as much precision and force as now can be hurled shot or shell. The Greeks in their army had slingers who would throw leaden plummets inscribed with the irritating words, ‘Take this’” (Talmage quoted in the 1920 Peloubet’s Select Notes on the International Sunday School Lessons, p. 207). David was a shepherd. He needed to use his sling to defend the sheep. It is not silly to believe that he was very skilled in using a sling. The Bible is accurate. The Bible tells us the truth, and David had one more thing on his side in being accurate with his sling. He had God on his side. God was with David as he went to battle with Goliath.
Study your Bible. Learn all you can from it. Obey God. Use your talents in His service. If any of this is hard to understand, ask an adult to help you.