In other words, the story related in the Book of Ruth didn't happen either. Isn't anything in the "old testament" true???
So tell us again about how John 6 is to be interpreted literally. [/sarcasm]
For example, in the letter to the Galatians, Paul writes in chapter 4 about Abraham's children through Hagar and Sarah. At verse 4:24, he writes, ἅτινά ἐστιν ἀλληγορούμενα, which the RSV Catholic Edition translates as, "Now this is an allegory" (the full verse reads, "Now this is an allegory: these women are two covenants").
The translation "this is an allegory" does not mean that the Catholic translators construe Paul to mean that Hagar and Sarah are fictional characters, but merely that Paul is interpreting Hagar and Sarah allegorically.