Verba Tua manent in aeternum

HUMANI GENERIS REDEMPTIONEM, Encyclical of Pope Benedict XV (June 15th 1917): 

To make men know Jesus Christ better and better, and to make that knowledge have a bearing, moreover, not only on their faith, but on their lives as well, was the object of that apostolic man's every endeavor. This was the object of every throb of his apostolic heart. Therefore all Christ's doctrines and commands, even the sterner ones, were so proclaimed by St. Paul that he did not restrict, gloss over or tone down what Christ taught regarding humility, self-denial, chastity, contempt of the world, obedience, forgiveness of enemies, and the like, nor was he afraid to tell his hearers that they had to make a choice between the service of God and the service of Belial, for they could not serve both, that when they leave this world, a dread judgment awaits them; that they cannot bargain with God; they may hope for life everlasting if they keep His entire law, but if they neglect their duty and indulge their passions, they will have nothing to expect but eternal fire.

For our "Preacher of truth" never imagined that he should avoid such subjects, because, owing to the corruption of the age, they appeared too stern to his hearers. Therefore it is clear how unworthy of commendation are those preachers who are afraid to touch upon certain points of Christian doctrine lest they should give their hearers offense. Does a physician prescribe useless remedies to his patient, merely because the sick man rejects effective ones? The test of the orator's power and skill is his success in making his hearers accept the stern truth he is preaching.