Nonsense, Jesus said all these things are done in parable, so some although ever seeing never perceive. Earth in Genesis is not the planet. The planet did not exist before light.
The book of Revelation tells you the waters stands for people, multitudes, nations, and languages. We are the waters.
Yes, the "firmament" separates the "waters above" from the "waters below" As it was in the days of Noah, so it is at the coming of the Son of Man.
Jesus told us, heaven and earth will pass away, but His words will never pass away.