T
Tantum_ergo
Guest
Yes it is fine for you to attend a service with your wife, provided you have also attended Catholic Mass. IOW, if you go to a Saturday afternoon/evening vigil Mass and then attend your wife’s church on Sunday, you’re fine. Or if you go to an 8 a.m. Catholic Sunday Mass, and then go to your wife’s church at 10 a.m., you’re fine (or her 8 a.m. Lutheran service and then your 10 a.m. CATHOLIC service.)Roman Catholics do attend other demoninational churches. My wife is a practicing Lutheran Missouri Synod and there are times I attend her service. She also attends my Roman Catholic Church Mass.
The only thing you could NOT do is attend her Lutheran church on a Sunday and NOT attend a Mass for that Sunday (or the Saturday vigil), and think that the attendance at the Lutheran church was in lieu of Catholic Mass. A Lutheran service is not equivalent to Mass (even if much of the service is similar).