'Exists' in the Bible

What the king is asking is too difficult, and no one exists who can disclose it to the king, except for the gods -- but they don't live among mortals!"

If the God we serve exists, then He can rescue us from the furnace of blazing fire, and He can rescue us from the power of you, the king.

I hereby decree that any people, nation, or language group that blasphemes the god of Shadrach, Meshach, or Abednego will be dismembered and his home reduced to rubble! For there exists no other god who can deliver in this way."