1 Samuel 17:29-34 New King James Version (NKJV)

29. And David said, “What have I done now? Is there not a cause?”

30. Then he turned from him toward another and said the same thing; and these people answered him as the first ones did.

31. Now when the words which David spoke were heard, they reported them to Saul; and he sent for him.

32. Then David said to Saul, “Let no man’s heart fail because of him; your servant will go and fight with this Philistine.”

33. And Saul said to David, “You are not able to go against this Philistine to fight with him; for you are a youth, and he a man of war from his youth.”

34. But David said to Saul, “Your servant used to keep his father’s sheep, and when a lion or a bear came and took a lamb out of the flock,

1 Samuel 17