'War' in the Bible

“Or what king, going to war against another king, will not first sit down and decide if he is able with 10,000 to oppose the one who comes against him with 20,000?

But I see a different law in the parts of my body, waging war against the law of my mind and taking me prisoner to the law of sin in the parts of my body.

Who ever goes to war at his own expense? Who plants a vineyard and does not eat its fruit? Or who shepherds a flock and does not drink the milk from the flock?

For though we live in the body, we do not wage war in an unspiritual way,

What is the source of wars and fights among you? Don’t they come from the cravings that are at war within you?

You desire and do not have. You murder and covet and cannot obtain. You fight and war. You do not have because you do not ask.

Dear friends, I urge you as strangers and temporary residents to abstain from fleshly desires that war against you.

When they finish their testimony, the beast that comes up out of the abyss will make war with them, conquer them, and kill them.

Then war broke out in heaven: Michael and his angels fought against the dragon. The dragon and his angels also fought,

So the dragon was furious with the woman and left to wage war against the rest of her offspring—those who keep God’s commands and have the testimony about Jesus.

They worshiped the dragon because he gave authority to the beast. And they worshiped the beast, saying, “Who is like the beast? Who is able to wage war against him?”

And he was permitted to wage war against the saints and to conquer them. He was also given authority over every tribe, people, language, and nation.

These will make war against the Lamb, but the Lamb will conquer them because He is Lord of lords and King of kings. Those with Him are called, chosen, and faithful.”

Then I saw heaven opened, and there was a white horse. Its rider is called Faithful and True, and He judges and makes war in righteousness.

Then I saw the beast, the kings of the earth, and their armies gathered together to wage war against the rider on the horse and against His army.