'Sword' in the Bible

Do not have the thought that I have come to send peace on the earth; I came not to send peace but a sword.

And one of those who were with Jesus put out his hand, and took out his sword and gave the servant of the high priest a blow, cutting off his ear.

Then says Jesus to him, Put up your sword again into its place: for all those who take the sword will come to death by the sword.