The answer is: Sling and stone

1 Sam 17:49-50 - "So David prevailed over the Philistine with a sling and with a stone, and struck the Philistine and killed him." David killed Goliath with the stone and then "visibly" killed him so the crowd could see he was dead by cutting of his head with Goliath's sword.

David’s legendary encounter with Goliath isn’t just about the epic clash of a shepherd boy against a giant; it's a deep exploration of courage, faith, and the consequences of underestimating the seemingly weak. A sling and a stone may not seem like the mightiest weapons in a battle, yet they changed the course of history. Did you know that ancient slings were effective artillery? They could send stone projectiles zipping at speeds comparable to modern-day bullets. Young David, who would often protect his flocks from lions and bears, honed an incredible skill that belied his tender age.

The mention of David using Goliath’s own sword to make his point—a horrifying finale—also reminds us of poetic justice, a recurring theme in biblical narratives. This act was not just brutal but symbolic, asserting that divine justice transcends human ingenuity.

Interestingly, legends of slayers and giants echo across cultures. Similarly, Greek hero Hercules battled giants—perhaps serving as a reminder of the eternal struggle between good and bad, the righteous and the unholy.

In the grand narrative of the Bible, David’s victory is often linked to the idea of faith preceding action: he believed he was destined for more than what met the eye. Think about how he ventured forth true of heart, reinforcing that our greatest victories often lie in faith and perseverance against overwhelming odds!