1 Samuel 17:31-35 American Standard Version (ASV)

31. And when the words were heard which David spake, they rehearsed them before Saul; and he sent for him.

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

33. And Saul said to David, Thou art not able to go against this Philistine to fight with him; for thou art but a youth, and he a man of war from his youth.

34. And David said unto Saul, Thy servant was keeping his father’s sheep; and when there came a lion, or a bear, and took a lamb out of the flock,

35. I went out after him, and smote him, and delivered it out of his mouth; and when he arose against me, I caught him by his beard, and smote him, and slew him.

1 Samuel 17