'War' in the Bible

Come, let us deal wisely with them, or else they will multiply and in the event of war, they will also join themselves to those who hate us, and fight against us and depart from the land.”

Now when Pharaoh had let the people go, God did not lead them by the way of the land of the Philistines, even though it was near; for God said, “The people might change their minds when they see war, and return to Egypt.”

and he said, “The Lord has sworn; the Lord will have war against Amalek from generation to generation.”

Now when Joshua heard the sound of the people as they shouted, he said to Moses, “There is a sound of war in the camp.”