1 Samuel 17:29-33

“What is it with you?” replied David. “All I did was ask a question.” Ignoring his brother, he turned to someone else, asked the same question, and got the same answer as before. The things David was saying were picked up and reported to Saul. Saul sent for him. “Master,” said David, “don’t give up hope. I’m ready to go and fight this Philistine.” Saul answered David, “You can’t go and fight this Philistine. You’re too young and inexperienced—and he’s been at this fighting business since before you were born.”