'Sword' in the Bible

He drove man out and stationed the cherubim and the flaming, whirling sword east of the garden of Eden to guard the way to the tree of life.

You will live by your sword,and you will serve your brother.But when you rebel,you will break his yoke from your neck.

Over and above what I am giving your brothers, I am giving you the one mountain slope that I took from the hand of the Amorites with my sword and bow.”