It's hard to believe that anyone would send a congratulatory wedding card that's this rude, but thinking back on some bizarre cards that I've received, maybe it's not...
Though we were saddened that you didn't marry in the church we are still happy for you. May God guide you in your new life together. May you have many years of wedding [sic] bliss.
The submitter says that the card-sender is a cousin of her husband, not a bitter old auntie in a rocking chair, as I'm sure we all pictured.