Except the bible doesn't say the earth is flat. That's your false interpretation.
The "firmament" separates the "waters above" from the "waters below".
Revelation 17:15 tells you that the "waters" WHERE THE WOMAN SITS, stands for people and nations.
Jesus was very clear about the stupid dome idea.
Matthew 5:14-15
โYou are the light of the world. A town built on a hill cannot be hidden. Neither do people light a lamp and put it under a bowl. Instead they put it on its stand, and it gives light to everyone in the house."
Mark 4:11-12
"And he said unto them, Unto you it is given to know the mystery of the kingdom of God: but unto them that are without, ALL THESE THINGS ARE DONE IN PARABLES: That seeing they may see, and not perceive; and hearing they may hear, and not understand; lest at any time they should be converted, and their sins should be forgiven them."
Jesus Christ is the Living Word of God. He is the Way, the TRUTH, and the Life. Seek Truth anon, look past the words and see the Word.
God Bless.