The heliocentric solar system was deduced by devout Christians. Copernicus was a Catholic cleric. Galileo was quite devout and remained devout despite his infamous persecution by the Church.
Cosmas Indicopleustes 548 AD
From you link:
"Nor did this situation [flat earth] change with the advent of Christianity. A few--at least two and at most five--early Christian fathers denied the sphericity of earth by mistakenly taking passages such as Ps. 104:2-3 as geographical rather than metaphorical statements."