“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:”
King James Version (KJV)
17:32 Let no man's heart, &c. - It would have reflected upon his prince to say, Let not thy heart fail: therefore he speaks in general terms, Let no man's heart fail. A little shepherd, come but this morning from keeping sheep, has more courage than all the mighty men of Israel! Thus doth God often do great things for his people by the weak things of the world.
17:33 A youth - Not above 20 years old; and a novice, a raw and unexperienced soldier.