'Itself' in the Bible

Then Herod secretly sent for the magi and learned from them the [exact] time the star [had first] appeared.

Knowing 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.

Then it goes and brings with it seven other spirits more wicked than itself, and they go in and make their home there. And the last condition of that man becomes worse than the first. So will it also be with this wicked generation.”