Division = Fall

Mark 3:24 And if a kingdom be divided against itself, that kingdom cannot stand.

25 And if a house be divided against itself, that house cannot stand.

26 And if Satan rise up against himself, and be divided, he cannot stand, but hath an end.

In the above passage the words kingdom/house/Satan are used synonymously.

Let's ask the question: what is Satan's kingdom/house?

The answer the Bible gives is – this world:

Luke 4:5 And the devil, taking him up into an high mountain, shewed unto him all the kingdoms of the world in a moment of time.

6 And the devil said unto him, All this power will I give thee, and the glory of them: for that is delivered unto me; and to whomsoever I will I give it.

Satan said that all the kingdoms of the world had been given to him. Is that true? Yes it is true. Due to the fact that Adam (the earth's original ruler/king) had believed the lie of Satan over the truth of God regarding the tree of the knowledge of good and evil-this meant that Adam (mankind) became subservient to the devil.

This is why he is called the "prince of this world":

John 14:30 Hereafter I will not talk much with you: for the prince of this world cometh, and hath nothing in me.

And,

John 16:11 Of judgment, because the prince of this world is judged.

Once we understand that Satan's kingdom/house is actually the world itself or the nations of the world-then we realize that when God says a house divided or a kingdom divided shall not stand – he is telling us that at the time of the end the forces of Satan will fall in the day of judgment. See:

Revelation 16:18 And there were voices, and thunders, and lightnings; and there was a great earthquake, such as was not since men were upon the earth, so mighty an earthquake, and so great.

19 And the great city was divided into three parts, and the cities of the nations fell: and great Babylon came in remembrance before God, to give unto her the cup of the wine of the fierceness of his wrath.

Notice the great city (Babylon – a figure of Satan's kingdom of this world) is "divided into three parts" and then the statement "the cities of the nations fell"-with a concluding declaration "and great Babylon came in remembrance before God".

Division = fall

Babylon is fallen, is fallen!