“IT VERY OFTEN happens that there is some question as to the earth and the sky, or the other elements of this world—respecting which one who is not a Christian has knowledge derived from most certain reasoning or observation, and it is very disgraceful and mischievous and of all things to be carefully avoided, that a Christian speaking of such matters as being according to the Christian Scriptures, should be heard by an unbeliever talking such nonsense that the unbeliever perceiving him to be as wide from the mark as east is from west, can hardly restrain himself from laughing.
“And the real evil is not that a man is subjected to derision because of his error, but it is that to profane eyes, our authors (that is to say, the sacred authors) are regarded as having had such thoughts; and are also exposed to blame and scorn upon the score of ignorance, to the greatest possible misfortune of people whom we wish to save. For, in fine, these profane people happen upon a Christian busy making mistakes on the subject which they know perfectly; how, then, will they believe these holy books? How will they believe in the resurrection of the dead and in the hope of life eternal, and in the kingdom of heaven, when, according to an erroneous assumption, these books seem to them to have as their object those very things which they, the profane, know by direct experience or by calculation which admits of no doubt?
“It is impossible to say what vexation and sorrow prudent Christians meet with through these presumptuous and bold spirits who, taken to task one day for their silly and false opinion, and realizing themselves on the point of being convicted by men who are not obedient to the authority of our holy books, wish to defend their so thoughtless, so bold, and so manifestly false. For they then commence to bring forward as a proof precisely our holy books, or again they attribute to them from memory that which seems to support their opinion, and they quote numerous passages, understanding neither the texts they quote, nor the subject about which they are making statement.”
~St. Augustine: De Genesi ad litteram, lib. I, cap. XIX.