The Doubtful Letters of Sulpitius Severus 24Chapter XVII.

Avoid words of contention and causes of animosity: flee also from all occasions of discord and strife. For if, according to the doctrine of the Apostle "the servant of the Lord must not strive," how much more does this become the handmaid of the Lord, whose mind ought to be more gentle, as her sex is more bashful and retiring. Restrain thy tongue from evil speaking, and put the bridle of the law upon thy mouth; so that you shall speak, if you speak at all, only when it would be a sin to be silent. Beware lest you utter anything which might be justly found fault with. A word once spoken is like a stone which has been thrown: wherefore it should be long thought over before it is uttered. Blessed, assuredly, are the lips, which never utter what they would wish to recall. The talk of a chaste mind ought itself also to be chaste, such as may always rather edify than injure the hearers, according to that commandment of the Apostle when he says, "Let no corrupt communications proceed out of your mouth, but that which is good for the edification of faith, that it may convey grace to them that hear." Precious to God is that tongue which knows not to form words except about divine things, and holy is that mouth from which heavenly utterances continually flow forth. Put down by the authority of Scripture calumniators of those who are absent, as being evil-minded persons, because the prophet mentions this also as among the virtues of a perfect man, if, in the presence of the righteous an evil-minded man, who brings forward things against his neighbor which cannot be proved, is brought down to nothing. For it is not lawful for you patiently to listen to evil-speaking against another, inasmuch as you would not wish that to be done by others when directed against yourself. Certainly, everything is unrighteous which goes against the Gospel of Christ, and that is the case, if you quietly permit anything to be done to another, which you would feel painful, if done by any one to yourself. Accustom your tongue always to speak about those who are good, and lend your ears rather to listen to the praises of good men than to the condemnation of such as are wicked. Take heed that all the good actions you perform are done for the sake of God, knowing that for every such deed you will only receive a reward, so far as you have done it out of regard to his fear and love. Study rather to be holy than to appear so, because it is of no avail to be reckoned what you are not; and the guilt of a twofold sin is contracted when you do not have what you are credited with having, and when you pretend to possess what you do not possess.