In proclaiming the faith and in administering the sacraments every priest speaks on behalf of Jesus Christ, for Jesus Christ.
Those who with God's help have welcomed Christ's call and freely responded to it are urged on by love of Christ to proclaim the Good News everywhere in the world.
“If you believe what you like in the Gospels, and reject what you don’t like, it is not the Gospel you believe, but yourself.”
No one is forced to be a Christian. But no one should be forced to live according to the "new religion" as though it alone were definitive and obligatory for all mankind.
For many people today, practical atheism is the normal rule of life...If this attitude becomes a general existential position, then freedom no longer has any standards, then everyting is possible and permissible.
There are many problems with sedevacantism, but the major one is assuming that a Pope has to be faultless. The Pope is a sinner, just like the rest of us, and part of the problem with sedevacantism is that it rests on the assumption that a Pope who has faults cannot be a legitimate Pope, which is of course, non-sense and goes against much of what the Church teaches with regards to sin and concupiscence.
Distinctions Matter
Distinctions Matter Forward
Missale Romanum
Pre-1951 Calendar