23 And it came to pass, when the evil spirit, which was not of God, was upon Saul, that David took a harp, and played with his hand; so Saul was refreshed, and was well, and the evil spirit departed from him.
1 Samuel 17 Intro: Goliath's challenge -- David taketh the challenge -- By faith he slayeth the giant.
1 Now the Philistines gathered together their armies to battle, and were gathered together at Shochoh, which belongeth to Judah, and pitched between Shochoh and Azehkah, in Ephes-dammim.
2 And Saul and the men of Israel were gathered together, and pitched by the valley of Elah, and set the battle in array against the Philistines.
3 And the Philistines stood on a mountain on the one side, and Israel stood on a mountain on the other side; and there was a valley between them.
4 And there went out a champion out of the camp of the Philistines, named Goliath, of Gath, whose height was six cubits and a span.
5 And he had a helmet of brass upon his head, and he was armed with a coat of mail; and the weight of the coat was five thousand shekels of brass.
6 And he had greaves of brass upon his legs, and a target of brass between his shoulders.
7 And the staff of his spear was like a weaver's beam; and his spear's head weighed six hundred shekels of iron; and one bearing a shield went before him.
8 And he stood and cried unto the armies of Israel, and said unto them, Why are ye come out to set your battle in array? am not I a Philistine, and ye servants to Saul? choose you a man for you, and let him come down to me.
9 If he be able to fight with me, and to kill me, then will we be your servants; but if I prevail against him, and kill him, then shall ye be our servants, and serve us.