1 Samuel 17:31-33

American Standard Version

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 ^[a]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.