'Battle' in the Bible

About forty thousand men, ready and armed for war passed over before Yahweh to battle, to the plains of Jericho.

It happened, when the king of Ai saw it, that they hurried and rose up early, and the men of the city went out against Israel to battle, he and all his people, at the time appointed, before the Arabah; but he didn't know that there was an ambush against him behind the city.

There was not a city that made peace with the children of Israel, except the Hivites, the inhabitants of Gibeon. They took all in battle.

For it was of Yahweh to harden their hearts, to come against Israel in battle, that he might utterly destroy them, that they might have no favor, but that he might destroy them, as Yahweh commanded Moses.