'Battle' in the Bible

If the bugle--to take another example--gives an uncertain sound, who will prepare for battle?

Therefore put on the complete armour of God, so that you may be able to stand your ground on the day of battle, and, having fought to the end, to remain victors on the field.

They had breast-plates which seemed to be made of steel; and the noise caused by their wings was like that of a vast number of horses and chariots hurrying into battle.

And war broke out in Heaven, Michael and his angels engaging in battle with the Dragon.

And they offered worship to the Dragon, because it was to him that the Wild Beast owed his dominion; and they also offered worship to the Wild Beast, and said, "Who is there like him? And who is able to engage in battle with him?"

For they are the spirits of demons working marvels--spirits that go out to control the kings of the whole earth, to assemble them for the battle which is to take place on the great day of God, the Ruler of all.