I think we can all go with the words of a real church historian - how's that?
As Augustine became older, he gave greater emphasis to the underlying historicity and necessity of a literal interpretation of Scripture. His most important work is De Genesi ad litteram. The title says it: On the necessity of taking Genesis literally. In this later work of his, Augustine says farewell to his earlier allegorical and typological exegesis of parts of Genesis and calls his readers back to the Bible. He even rejected allegory when he deals with the historicity and geographic locality of Paradise on earth. (Zuiddam)
What part of "taking Genesis literally" do you still not understand? You made a big mistake, mate. Augustine was not on your side any way you want to spin it - move forward. :yes