"We must remember that if all the manifestly good men were on one side and all the manifestly bad men on the other, there would be no danger of anyone, least of all the elect, being deceived by lying wonders.  It is the good men, good once, we must hope good still, who are to do the work of Anti-Christ and so sadly to crucify the Lord afresh…. Bear in mind this feature of the last days, that this deceitfulness arises from good men being on the wrong side."
--Fr. Frederick Faber, Sermon for Pentecost Sunday, 1861; qtd. in Fr. Denis Fahey, The Mystical Body of Christ in the Modern World (text here)