I am hoping someone one here can help me settle a disagreement. At one time it was Church discipline that we did not eat meat on Fridays. A lot of people therefore ate fish on Fridays. Now I have been having a discussion with a friend who says that the Church told us we had to eat fish of Fridays. That used to be my belief. My argument is that the Church did not tell us to eat fish on Fridays. Not eating meat was a penitential practice. It was about giving something up (i.e. meat) not replacing it with something else (e.g. eating fish instead of meat).
Now, I was of the same opinion as my friend until I read an article by quite a senior prelate who said what I’m now saying: the Friday penance was to give something up not just to swap one thing for another. My problem is I cannot remember (a) who the prelate was (although I think it was Cardinal Basil Hume) or (b) where I read it.
Which one of us is correct?