Is it a sin to attend a lesbian wedding?

My parish priest has told me that Catholics should not attend gay “weddings” as marriage cannot be between a same sex couple according to God’s law. My niece is having a lesbian wedding. If I attend I believe I become part of the problem inasmuch as people failing to stand up for God’s law facilitate the spread of evil and immorality. If I do not go my sister thinks I am being mean. My not attending will be a bring major discord into my family. Do I attend despite the immorality of the union?

The following link should assist you in better understanding the Catholic Church’s teaching on attending same sex marriages. If you have any further questions or concerns that are not answered by this link, please contact Catholic Answers directly.

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