From St. Augustine, A Literal Interpretation of Genesis (5th century AD).

Contrary to popular held belief, arguments about a literal interpretation of Genesis and the meaning of the days that are mentioned in the first chapter existed 1400 years before 19th c. advances in geology and biology. St. Augustine personally believed that the days served a literary function that God created everything all at once. St. Jerome (also 5th century)noted that the early chapters of Genesis resembled folk stories. The following excerpt ought to give people pause when they claim that those who do not have a literal interpretation of certain parts of Scripture are unbiblical.

It is also frequently asked what our belief must be about the form and
shape of heaven according to Sacred Scripture. Many scholars engage in
lengthy discussions on these matters, but the sacred writers with their
deeper wisdom have omitted them. Such subjects are of no profit for those
who seek beatitude, and, what is worse, they take up precious time that
ought to be given to what is spiritually beneficial. What concern is it of mine
whether heaven is like a sphere and the earth is enclosed by it and suspended
in the middle of the universe, or whether heaven like a disk above the
earth covers it over on one side?…The Spirit of God, who spoke through them
[sacred writers], did not wish to teach men these facts that would be of no
avail for their salvation.