'Fight' in the Bible

Now when all the Moabites heard that the kings were come up to fight against them, they gathered themselves together, all that were able to put on armor, and upward, and stood on the border.

look ye out the best and meetest of your master's sons, and set him on his father's throne, and fight for your master's house.

And when he heard say of Tirhakah king of Ethiopia, Behold, he is come out to fight against thee, he sent messengers again unto Hezekiah, saying,