'Sword' in the Bible

Yes, a sword will pierce through your own soul, that the thoughts of many hearts may be revealed."

They will fall by the edge of the sword, and will be led captive into all the nations. Jerusalem will be trampled down by the Gentiles, until the times of the Gentiles are fulfilled.

Then he said to them, "But now, whoever has a purse, let him take it, and likewise a wallet. Whoever has none, let him sell his cloak, and buy a sword.

When those who were around him saw what was about to happen, they said to him, "Lord, shall we strike with the sword?"