'Itself' in the Bible

I assure you and most solemnly say to you, unless a grain of wheat falls into the earth and dies, it remains alone [just one grain, never more]. But if it dies, it produces much grain and yields a harvest.

Whoever rejects Me and refuses to accept My teachings, has one who judges him; the very word that I spoke will judge and condemn him on the last day.

Remain in Me, and I [will remain] in you. Just as no branch can bear fruit by itself without remaining in the vine, neither can you [bear fruit, producing evidence of your faith] unless you remain in Me.

and the [burial] face-cloth which had been on Jesus’ head, not lying with the [other] linen wrappings, but rolled up in a place by itself.

And there are also many other things which Jesus did, which if they were recorded one by one, I suppose that even the world itself could not contain the books that would be written.