'Exists' in the Bible

What exists now is what will be, and what has been done is what will be done; there is nothing truly new on earth.

Whatever exists now has already been, and whatever will be has already been; for God will seek to do again what has occurred in the past.

Next I turned to consider all kinds of oppression that exists on earth. Look at the tears of the oppressed there is no one to comfort them. Power is on the side of their oppressors; so they have no comforters.

There exists another misfortune that I have observed on earth, and it is a heavy burden upon human beings:

Whatever exists was given its name long ago, and it is known what man is. But he is not able to contend with the One stronger than he.

What exists is beyond reach and very deep. Who can discover it?