'Existence' in the Bible

"You are worthy, our Lord and God, to receive glory, honor, and power, because you created all things; they came into existence and were created because of your will."

And the sea gave up the dead who were in it, and death and Hades (the realm of the dead) surrendered the dead who were in them; and they were judged and sentenced, every one according to their deeds.

Then death and Hades [the realm of the dead] were thrown into the lake of fire. This is the second death, the lake of fire [the eternal separation from God].