1 Samuel 17:32

28And Eliab his eldest brother heard when he spake unto the men; and Eliab’s anger was kindled against David, and he said, Why camest thou down hither? and with whom hast thou left those few sheep in the wilderness? I know thy pride, and the naughtiness of thine heart; for thou art come down that thou mightest see the battle.

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

30And he turned from him toward another, and spake after the same manner: and the people answered him again after the former manner.

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

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

33And 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.

34And David said unto Saul, Thy servant kept his father’s sheep, and there came a lion, and a bear, and took a lamb out of the flock:

35And 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.

36Thy servant slew both the lion and the bear: and this uncircumcised Philistine shall be as one of them, seeing he hath defied the armies of the living God.