There could be a big difference, you realize that this will not be a MASS? Be respectful, but don’t participate, you are just an observer. NOT taking any kind of communion goes without saying. Check around and see if you can attend with someone else from the parish. You will be more comfortable with a companion.
What do you mean “don’t participate, you are just an observer”?
As a priest, I have been invited – or sent – to many ecumenical events over the years…either myself personally or accompanied by a delegation of other Catholics. I am quite actively a part of it, whether preaching at an Evensong or reading a sacred text. Seminarians or laity with me were participants as part of choir or fulfilling some ministerial role.
I read posts on here and it like encountering people who have not caught up with the reality of the ecumenical movement and where the Holy See and the Roman Church is today.
We are, thanks be to God!, far removed from the attitudes of 70+ years ago because we have fully embraced the ecumenical movement.
If it is announced in the bulletin of the Catholic parish, I would presume it is an event that is bringing together an ecumenical gathering of clergy and laity.
Personally, I am looking forward, later this year, in co-presiding with a Lutheran cleric in a Service of Common Prayer for the joint Catholic Lutheran commemoration of the Reformation. The congregation will be formed equally by Catholics and Lutherans and my Lutheran co-presider and I will be standing as equals.
As Pope Benedict said in Erfurt in 2011:
*I would respond by saying that
the first and most important thing for ecumenism is that we keep in view just how much we have in common, not losing sight of it amid the pressure towards secularization – everything that makes us Christian in the first place and continues to be our gift and our task.
It was the error of the Reformation period that for the most part we could only see what divided us and we failed to grasp existentially what we have in common in terms of the great deposit of sacred Scripture and the early Christian creeds. For me, the great ecumenical step forward of recent decades is that we have become aware of all this common ground, that we acknowledge it as we pray and sing together, as we make our joint commitment to the Christian ethos in our dealings with the world, as we bear common witness to the God of Jesus Christ in this world as our inalienable, shared foundation.
/…/
This is a key ecumenical task in which we have to help one another: developing a deeper and livelier faith. It is not strategy that saves us and saves Christianity, but faith – thought out and lived afresh; through such faith, Christ enters this world of ours, and with him, the living God. As the martyrs of the Nazi era brought us together and prompted that great initial ecumenical opening, so today, faith that is lived from deep within amid a secularized world is the most powerful ecumenical force that brings us together, guiding us towards unity in the one Lord. And we pray to him, asking that we may learn to live the faith anew, and that in this way we may then become one.*