I am not Orthodox (I'm Eastern Catholic) but I'm just wondering about the Orthodox perspective on this.
I read that in the Catholic Church, it was not allowed for Catholics to communicate (I don't mean sharing Communion, but communicating as in having conversations, eating together, etc) with heretics/schismatics/etc though I seem to remember it being alright to do this to help in their salvation (so talking to someone about returning to the Church, for example). There was an excommunication for this. Eventually it got so complicated that the Pope changed the canon on this, and according to Catholic Encyclopedia there is no longer an excommunication on this, although it's always been and still is a sin to aid someone in heresy or to give them support in heresy. I'm a little confused about the history of this so hopefully I got this right.
Well I was wondering, if anything similar exists in the Orthodox church. Since I'm Catholic obviously I believe in Catholicism (but I'm not here to argue that) - but according to the Orthodox perspective, - let's say someone was Orthodox and then joined another church, would it be a sin for their Orthodox friends to continue to meet with them, as friends? Is this considered a sin and is there any canons about it?
I would greatly appreciate any information, especially from a priest or deacon.
Again I'm not here to argue this or any other point, just looking for info