It was a comment, not an objection.
I understood you to say the quote from 1 Timothy 3:16 was from the RSV "NOT a Catholic translation". In fact the quote was from the KJV.
The RSV and Ignatius Edition RSV quotations are identical, while the KJV and Douay Rheims quotations are nearly identical. Not critical to the discussion my friend, simply a gentle correction of fact.
(That's okay, I'm entirely at home here...)
I quoted "Great is the mystery of our religion" from memory in answer to someone saying there was only one use of"mystery" in the NT.
My contender said the word was not used in that verse.
I went to http://www.biblegateway.com and found that they say that the KJV says: ... great is the mystery of godliness:...
They present the Douay-Rheims 1899 American Edition (DRA) as: great is the mystery of godliness,...
biblegateway doesn't seem to have an RSV. And mine is packed up.
But after much Googling and gnashing of teeth I find
Great indeed, we confess, is the mystery of our religion:.... here