1 Samuel 17:32-34

King James Version

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 kept his father's sheep, and there came a lion, and a bear, and took a lamb out of the flock: