Passage
So David prevailed over the Philistine with a sling and with a stone, and struck the Philistine, and killed him; but there was no sword in the hand of David.
So David prevailed over the Philistine with a sling and with a stone, and struck the Philistine, and killed him; but there was no sword in the hand of David.
1 Samuel 17:48 When the Philistine arose, and walked and came near to meet David, David hurried, and ran toward the army to meet the Philistine.
1 Samuel 17:49 David put his hand in his bag, took a stone, and slung it, and struck the Philistine in his forehead. The stone sank into his forehead, and he fell on his face to the earth.
1 Samuel 17:50 So David prevailed over the Philistine with a sling and with a stone, and struck the Philistine, and killed him; but there was no sword in the hand of David.
1 Samuel 17:51 Then David ran, stood over the Philistine, took his sword, drew it out of its sheath, killed him, and cut off his head with it. When the Philistines saw that their champion was dead, they fled.
1 Samuel 17:52 The men of Israel and of Judah arose and shouted, and pursued the Philistines as far as Gai and to the gates of Ekron. The wounded of the Philistines fell down by the way to Shaaraim, even to Gath and to Ekron.
The verse centers on "david", "prevailed", "over", "philistine", "sling", "stone", and "struck". It is saying that the verse draws attention to "david" and "prevailed", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 49's "David put his hand in his bag..." into verse 51's "Then David ran stood over the Philistine...", so "david" and "prevailed" belong inside that flow. In 1 Samuel context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "david" and "prevailed" with trust shaped by these words, not by a vague optimism outside the passage.