Then he goes, and takes with himself seven other spirits more wicked than himself, and they enter in and dwell there: and the last state of that man is worse than the first. Even so shall it be also unto this wicked generation.
All Commentaries on Matthew 12:45 Go To Matthew 12
Theophylact of Ochrid
AD 1107
He shows that they have been brought to utter perdition by not accepting Him. For just as those who have been delivered from demons suffer worse things if they become lazy and careless, so it is that your generation was possessed of a demon when it worshipped the idols. But this demon was cast out by means of the prophets. Then I Myself came, wishing to cleanse you further. But since you rejected Me, and, indeed, are eager to slay Me, as your sin is worse, so will your punishment be worse, and your last captivity will be more grievous than the former. You, O reader, must also understand this, that the unclean spirit is cast out by baptism and goes forth among waterless and unbaptized souls; but it does not find rest in them. Rest for demons is to harass with evil deeds those who are baptized, for they already possess those who are unbaptized. Therefore the demon returns with seven other spirits to the one who is baptized. For just as there are seven gifts of the Holy Spirit, so, on the contrary, there are seven spirits of evil. When the demon re-enters the one who is baptized, the disaster is worse. For, previously, there was hope of being cleansed through baptism. But now there is no hope of a second baptism, unless it be by the baptism of repentance, which is exceedingly toilsome.