"Thanks! It is definitely profitable."
Before you go to your next bible study, read up on what one or two of the Fathers have written on the passage under discussion then drop on them, "Well, you know, +John Chrysostomos (or +Peter of Damascus or +Basil the Great, etc) in his Homily on ... wrote"! Amaze your friends! Confound your enemies! :)
Hey, that's pretty good. :) My last group broke up a little while ago, but when the next one comes along, I'll do it. :)