Matthew 12:25-29

25Knowing their thoughts Jesus said to them, “Any kingdom that is divided against itself is being laid waste; and no city or house divided against itself will [continue to] stand.

26If Satan casts out Satan [that is, his demons], he has become divided against himself and disunited; how then will his kingdom stand?

27If I cast out the demons by [the help of] Beelzebul (Satan), by whom do your sons drive them out? For this reason they will be your judges.

28But if it is by the Spirit of God that I cast out the demons, then the kingdom of God has come upon you [before you expected it].

29Or how can anyone go into a strong man’s house and steal his property unless he first overpowers and ties up the strong man? Then he will ransack and rob his house.