'Edge of the Sword' in the Bible

So he showed them the entrance of the city, and they struck the city with {the edge of the sword}, but they let go the man and all his family.

But Barak pursued after the chariots and army as far as Harosheth Haggoyim, and all of Sisera's army fell to {the edge of the sword}; no one was left.

And the men of Israel returned to the descendants of Benjamin, and they put them to {the edge of the sword}, both the inhabitants of city and [the] animals that were found; they also set on fire all the cities that they found.

And the congregation sent there twelve thousand men from the troops, and they commanded them, saying, "Go, strike the inhabitants of Jabesh-gilead with {the edge of the sword}, and the women and children.