The Sword was Used by Heathen Nations

And when the three hundred rams’ horns sounded, the LORD set all the men in the camp against one another with their swords. The army fled to Beth-shittah toward Zererah as far as the border of Abel-meholah near Tabbath.

But Samuel declared: “As your sword has made women childless, so your mother will be childless among women.” And Samuel hacked Agag to pieces before the LORD at Gilgal.