'Itself' in the Bible

Be not careful therefore for the morrow, for the morrow shall be careful about itself. Sufficient to the day is its own evil.

But he, knowing their thoughts, said to them, Every kingdom divided against itself is brought to desolation, and every city or house divided against itself will not subsist.

And he says to them, Because of your unbelief; for verily I say unto you, If ye have faith as a grain of mustard seed, ye shall say to this mountain, Be transported hence there, and it shall transport itself; and nothing shall be impossible to you.