"All the saints will be witnesses to the salvific nature of the Christian faith against all our learned secular ignoramuses who pride themselves on their false education, against all non-Orthodox Christians, Jews, Muslims, pagans, and especially against those who are only called Orthodox Christians but have long since changed their faith in practice. That is why martyrs are called “witnesses” in Greek. Remember, Christian, how many witnesses will be against you at the judgment of Christ."
January 1, 1970
https://en.wikiquote.org/wiki/John_of_Kronstadt