1 Samuel 17:32 in the King James Version
And David said to Saul, Let no man’s heart fail because of him; thy servant will go and fight with this Philistine.
Context
31 When the words were heard which David spoke, they rehearsed them before Saul; and he sent for him.
32 David said to Saul, “Let no man’s heart fail because of him. Your servant will go and fight with this Philistine.”
33 Saul said to David, “You are not able to go against this Philistine to fight with him; for you are but a youth, and he a man of war from his youth.”