1st Samuel 17:47 And all this assembly shall know that the Lord saves not with sword and spear: for the battle is the Lord's, and he will give you into our hands. 48 And it came to pass, when the Philistine arose, and came, and drew nigh to meet David, that David hastened, and ran toward the army to meet the Philistine.
Here it is again, as David faces Goliath, he knows he dare not tackle him, so as he had always done in the past, he turns to God for help, and like clockwork, his faith is rewarded. It would have been totally impossible for David to take down the giant, for according to the narrative, Goliath was not only armed to the tooth, but he was also protected by state of the art armor.
He wore a helmet of brass to protect his forehead, and thus, a simple stone, all by itself, could never have penetrated to his skull with such force so as to kill him. Basically, not happening without God. Whenever God uses a person to accomplish a great work, that individual should be very careful not to attribute success to their own might and power, as if the victory were theirs. This is a form of stealing and must be avoided at all costs.
1st Samuel 17:4 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.
1st Samuel 17:49 And David put his hand in his bag, and took thence a stone, and slang it, and smote the Philistine in his forehead, that the stone sunk into his forehead; and he fell upon his face to the earth.
May God add His blessing to the study of His word. “Good night” and God bless!