[quote="JLAChild, post:1, topic:313956"]
I have come back to the Church a little while ago. I came across something today on a Catholic site that said taking part in non-Catholic religions was a sin against the first commandment.
I have listened to sermons for the last few years from some Christian Preachers and even still now give money to Christian, non-Catholic Charities.
Are these really sins?
What am I not understanding here?
Some Traditionalist sites reject ecumenism and invoke earlier disciplinary measures against Catholics participating in ecumenism.
Such sites may be dissident in openly rejecting Vatican II, or just very conservative within the bounds of legitimate discussion.
If you are reading a site which says, unequivocally, that participating in a Protestant ceremony is a sin (ie. just attending is a sin), then it is wrong, and the site is probably a dissident Catholic site. Dissident sites never admit they are dissident, btw.. ;)
On the other hand, if you were to be regularly practicing another denomination or religion, then that is a sin. For example, it is a sin to receive communion in another denomination, or to accept a doctrine which is contrary to Catholicism.
I personally sometimes read non-Catholic writers and also give to non-Catholic charities.