I believe that Orthodoxy is right and Catholicism is not (in so far as they differ), but I would never tell a Catholic not to come to one of our liturgies, if they wanted to do that. In fact, I have encouraged Catholic and Protestant friends to do so, because it is a unique experience for them and so they’re likely to gain a bit of perspective as a result. I would explain to them beforehand that they cannot receive communion (though we don’t have to do that with the two Catholics who regularly attend here at St. Bishoy, because they know that already), but aside from that one prohibition, why should we **not **want them to be with us? That is the first thing that anybody from church says if I bring up having met a new person recently (I only moved to Albuquerque about a year ago, so that’s still happening): “Will you invite them to come visit us?” We love our faith and our church, so of course it is open to anyone who wants to experience it, provided that they follow our rules concerning communion (and that’s really the only thing; visitors don’t have to take their shoes off like we do, since they won’t be approaching the sanctuary). So we don’t have the kind of adversarial relationship with the local non-Orthodox Christians that you might expect if you read some of the posts in this thread, and, having read those posts, I’m really, really glad about that.
You are all welcome to St. Bishoy COC in New Mexico, by the way.

Give us a few more months and we may even have our own building (finally! after 16 years!), God willing.