Catholics who deny Scripture teaches a flat earth are grossly unaware how the smallest or most seemingly unrelated words can show the truth of a teaching when highlighted by the Fathers. For instance, the Bible passage that points to the truth of the Immaculate Conception is Luke 1:28, the words of the angel Gabriel to Mary at the Annunciation, "Hail, full of grace." In the original Greek of the New Testament, the phrase "full of grace" is comprised in the word kecharitomene. This is from where the seed of the doctrine of the Immaculate Conception is gleaned. That, and Tradition testify to the Glory of Mary. The simple words, "full of grace" point to the fact that Mary did not sin. In the same way, the Fathers of the Church point to far more descriptive passages of the form of God's creation regarding the earth when it says: Gen 1:6 "And God said: Let there be a firmament made amidst the waters: and let it divide the waters from the waters. 7 And God made a firmament, and divided the waters that were under the firmament, from those that were above the firmament, and it was so. 9 And God called the firmament, Heaven; and the evening and morning were the second day." Scripture continues to describe the earth saying the heavens are stretched over the earth like a tent. That as far as east is from the west, that is how far God removes sin from us, etc. Now, had the Fathers never mentioned any of this, it would still remain true and obvious. But they did comment. Several of them tell us that Scripture is to be taken literally when it comes to the dome. That because Scripture says so, is why we believe the dome exists and there's water above the dome. And even that the land is circuмscribed like a wheel, etc. Now, just because you refuse to look at the teachings of the Fathers, or refuse to accept them doesn't change anything. Protestants do the same with Luke 1:28 and deny a most important Catholic truth.