I thought that someone who was seperated or had a civil divorce, but lived a chaste lifestyle and did not remarry was allowed to go to communion (depending on the reason for the separation). . .
Other things being equal, such as being in a state of grace and not being under a penalty, this is correct.
It would be incorrect to say, " If you are divorced without being remarried or in a non-platonic relationship, you are excluded from the sacraments." The law of the Church does not say that. It does not impose a penalty which prohibits receiving the sacraments on the basis of civil divorce.
but this thread in ask an apologist
forums.catholic-questions.org/showthread.php?t=99086
has me confused about this.
The key might be in this part of the response by the apologist. “At the present you are not allowed to receive Holy Communion until you are married in the Church—unless you live a celibate life-style.”
This merely emphasizes that sexual intimacy, properly expressed (add everything you know about the openness to new life from magisterial teaching here) can only take place within a valid marriage according to divine law and Catholic belief based on divine law.
Any other expression would involve objectively grave sin.
That would be the case in the possibility that the original poster inquired of the apologist — a remarriage without an “annulment” and which would be invalid since it could not be celebrated in the Catholic Church. In such a situation, sexual intimacy would involve objectively grave sin
Specifically, if a wife is abused by her husband and moves out, but then lives a celibate life style, is she in a state of mortal sin?
The Church permits separation, even on a permanent basis, in certain cases of grave danger to oneself or children. So taken on that basis alone, we would have no reason to suspect an objective state of mortal sin.
The Church allows the innocent spouse to separate, even permanently, in the case of adultery. To effect permanent separation does involve civil divorce.
However, in the case of grave danger, when it passes, the couple is to reconcile.
The grave danger though may never pass in the case of true mental illnesses, substance abuse, etc., so there is that possibility of permanent separation. In the case of adultery, the Church wishes to urge forgiveness and reconciliation, but does not compel reconciliation in its law.
Or is someone who is applying for an annulment in a state of mortal sin?
By itself, asking for a tribunal to investigate the nullity of a marriage so that a person can know his or her status in the Church would not present a sinful act.
The person might have behaved during or after the common life in such a way to commit mortal sin, but that would be a separate issue.
The documentation for denying Holy Communion in cases of civil divorce and remarriage without “anulment” or dissolution can be found at
vatican.va/roman_curia/congregations/cfaith/documents/rc_con_cfaith_doc_14091994_rec-holy-comm-by-divorced_en.html.