If I did that my T would be surprised because I tend to be very sure that I am wrong/bad/etc. and leave a lot of room for everyone else’s needs or beliefs to come before mine. Is that true for you? If so, making such a firm statement that you are right and your elder is wrong might be surprising because it is out of character.

I tend to think shock is a more extreme version of surprise, and is often colored by judgement. Based on your description of the interaction I would say he was surprised (maybe even pleased!), but not shocked. I’m often wrong at reading folk too though.

It may also tell your T that your faith is a lot more important than he realized.