'War' in the Bible

come, let us deal wisely with them, lest they multiply, and it come to pass, that, when there falleth out any war, they also join themselves unto our enemies, and fight against us, and get them up out of the land.

And it came to pass, when Pharaoh had let the people go, that God led them not by the way of the land of the Philistines, although that was near; for God said, Lest peradventure the people repent when they see war, and they return to Egypt:

Jehovah is a man of war: Jehovah is his name.

And he said, Jehovah hath sworn: Jehovah will have war with Amalek from generation to generation.

And when Joshua heard the noise of the people as they shouted, he said unto Moses, There is a noise of war in the camp.