'Sword' in the Bible

Why is the Lord taking us into this land to come to our death by the sword? Our wives and our little ones will get into strange hands: would it not be better for us to go back to Egypt?

And anyone touching one who has been put to death with the sword in the open country, or the body of one who has come to his end by a natural death, or a man's bone, or the resting-place of a dead body, will be unclean for seven days.

And a clean person is to take hyssop and put it in the water, shaking it over the tent, and all the vessels, and the people who were there, and over him by whom the bone, or the body of one who has been put to death with the sword, or the body of one who has come to his end by a natural death, or the resting-place was touched.

And Edom said, You are not to go through my land, for if you do I will come out against you with the sword.

And the ass saw the angel of the Lord waiting in the road with his sword in his hand; and turning from the road, the ass went into the field; and Balaam gave the ass blows, to get her back on to the road.

And Balaam said to the ass, You have made me seem foolish: if only I had a sword in my hand I would put you to death.

Then the Lord made Balaam's eyes open, and he saw the angel of the Lord in the way with his sword in his hand: and he went down on his face to the earth.

They put the kings of Midian to death with the rest, Evi and Reken and Zur and Hur and Reba, the five kings of Midian: and Balaam, the son of Beor, they put to death with the sword.

If in his hate he put a sword through him, or waiting secretly for him sent a spear or stone at him, causing his death;