If God is omnipotent, then He could have created the Earth 6,000 years ago, together with all the material evidence pointing out to billions years of history. Why?
BECAUSE we are to walk by Faith and not by sight.
I fail to see where the Bible says that the earth is flat. In fact, since you love allegory, it specifically says that it is round. “Your sins will be cast as far as the east is from the west”. Why east-west? Because on our GLOBE there isn’t a beginning to either, and it was known then, especially to God.
Precisely, but please also refer to the discussion about Thomas. As for the flatness of the Earth, refer to #39.