Catechism of the Council of Trent: No False Witness
THE EIGHTH COMMANDMENT : "Thou shalt not bear false witness against thy neighbour"
Importance Of Instruction On This Commandment
The great utility, nay the necessity, of carefully explaining this Commandment, and of emphasising its obligation, we learn from these words of St. James: If any man offend not in word, the same is a perfect man; and again, The tongue is indeed a little member, and boasteth great things. Behold how small a fire, what a great wood it kindleth; and so on, to the same effect.
From these words we learn two truths. The first is that sins of the tongue are very prevalent, which is confirmed by these words of the Prophet: Every man is a liar, so that it would almost seem as if this were the only sin which extends to all mankind. The other truth is that the tongue is the source of innumerable evils. Through the fault of the evil-speaker are often lost the property, the reputation, the life, and the salvation of the injured person, or of him who inflicts the injury. The injured person, unable to bear patiently the contumely, avenges it without restraint. The offender, on the other hand, deterred by a perverse shame and a false idea of what is called honour, cannot be induced to make reparation to him whom he has offended.
This Commandment Should Call Forth Our Gratitude
Hence the faithful are to be exhorted to thank God as much as they can for having given this salutary Commandment, not to bear false witness, which not only forbids us to injure others, but which also, if duly observed, prevents others from injuring us.
Two Parts Of This Commandment
In its explanation we shall proceed as we have done with regard to the others, pointing out that in it are contained two laws. The first forbids us to bear false witness. The other commands us to lay aside all dissimulation and deceit, and to measure our words and actions by the standard of truth, a duty of which the Apostle admonishes the Ephesians in these words: Doing the truth in charity, let us grow up in all things in him.
Negative Part Of This Commandment
With regard to the prohibitory part of this Commandment, although by false testimony is understood whatever is positively but falsely affirmed of anyone, be it for or against him, be it in a public court or elsewhere; yet the Commandment specially prohibits that species of false testimony which is given on oath in a court of justice. For a witness swears by the Deity, because the words of a man thus giving evidence and using the divine name, have very great weight and possess the strongest claim to credit. Such testimony, therefore, because it is dangerous, is specially prohibited; for even the judge himself cannot reject the testimony of sworn witnesses, unless they be excluded by exceptions made in the law, or unless their dishonesty and malice are notorious. This is especially true since it is commanded by divine authority that in the mouth of two or three every word shall stand.
"Against Thy Neighbour"
In order that the faithful may have a clear comprehension of this Commandment it should be explained who is our neighbour, against whom it is unlawful to bear false witness. According to the interpretation of Christ the Lord, our neighbour is he who needs our assistance, whether bound to us by ties of kindred or not, whether a fellow-citizen or a stranger, a friend or an enemy. It is wrong to think that one may give false evidence against an enemy, since by the command of God and of our Lord we are bound to love him.
Moreover, as every man is bound to love himself, and is thus, in some sense, his own neighbour, it is unlawful for anyone to bear false witness against himself. He who does so brands himself with infamy and disgrace, and injures both himself and the Church of which he is a member, much as the suicide, by his act, does a wrong to the state. This is the doctrine of St. Augustine, who says: To those who do not understand (the precept) properly, it might seem lawful to give false testimony against one's self, because the words "against thy neighbour" are subjoined in the Commandment. But let no one who bears false testimony against himself think that he has not violated this Commandment, for the standard of loving our neighbour is the love which we cherish towards ourselves.
False Testimony In Favour Of A Neighbour Is Also Forbidden
But if we are forbidden to injure our neighbour by false testimony, let it not be inferred that the contrary is lawful, and that we may help by perjury those who are bound to us by ties of kinship or religion. It is never allowed to have recourse to lies or deception, much less to perjury. Hence St. Augustine in his book to Crescentius On Lying teaches from the words of the Apostle that a lie, although uttered in false praise of anyone, is to be numbered among false testimonies. Treating of that passage, Yea, and we are found false witnesses of God, because we have given testimony against God, that he hath raised up Christ whom he hath not raised, if the dead rise not again, he says: The Apostle calls it false testimony to utter a lie with regard to Christ, even though it should seem to redound to His praise.
It also not infrequently happens, that by favouring one party we injure the other. False testimony is certainly the occasion of misleading the judge, who, yielding to such evidence, is sometimes obliged to decide against justice, to the injury of the innocent.
Sometimes, too, it happens that the successful party, who by means of perjured witnesses, has gained his case and escaped with impunity, exulting in his iniquitous victory, soon becomes accustomed to the work of corrupting and suborning false witnesses, by whose aid he hopes to obtain whatever he wishes.
To the witness himself it must be most grievous that his falsehood and perjury are known to him whom he has aided and abetted by his perjury; whilst encouraged by the success that follows his crime, he becomes every day more accustomed to wickedness and audacity.
"Thou Shalt Not Bear False Witness"
All Falsehoods In Lawsuits Are Forbidden
This precept then prohibits deceit, lying and perjury on the part of witnesses. The same prohibition extends also to plaintiffs, defendants, promoters, representatives, procurators and advocates; in a word, to all who take any part in lawsuits.
False Testimony Out Of Court Is Forbidden
Finally, God prohibits all testimony which may inflict injury or injustice, whether it be a matter of legal evidence or not. In the passage of Leviticus where the Commandments are repeated, we read: Thou shalt not steal; thou shalt not lie; neither shall any man deceive his neighbour. To none, therefore can it be a matter of doubt, that this Commandment condemns lies of every sort, as these words of David explicitly declare: Thou wilt destroy all that speak a lie.
This Commandment Forbids Detraction
This Commandment forbids not only false testimony, but also the detestable vice and practice of detraction—a pestilence, which is the source of innumerable and calamitous evils. This vicious habit of secretly reviling and calumniating character is frequently reprobated in the Sacred Scriptures. With him, says David, I would not eat; and St. James: Detract not one another, my brethren.
Holy Writ abounds not only with precepts on the subject, but also with examples which reveal the enormity of the crime. Aman, by a crime of his own invention, had so incensed Assuerus against the Jews that he ordered the destruction of the entire race. Sacred history contains many other examples of the same kind, which priests should recall in order to deter the people from such iniquity.
Various Kinds Of Detraction
But, to understand well the nature of this sin of detraction, we must know that reputation is injured not only by calumniating the character, but also by exaggerating the faults of others. He who gives publicity to the secret sin of any man, in an unnecessary place or time, or before persons who have no right to know, is also rightly regarded as a detractor and evil-speaker, if his revelation seriously injures the other's reputation.
But of all sorts of calumnies the worst is that which is directed against Catholic doctrine and its teachers. Persons who extol the propagators of error and of unsound doctrine are guilty of a like crime.
Nor are those to be dissociated from the ranks of evil-speakers, or from their guilt, who, instead of reproving, lend a willing ear and a cheerful assent to the calumniator and reviler. As we read in St. Jerome and St. Bernard, it is not so easy to decide which is more guilty, the detractor, or the listener; for if there were no listeners, there would be no detractors.
To the same category belong those who cunningly foment divisions and excite quarrels; who feel a malignant pleasure in sowing discord, dissevering by fiction and falsehood the closest friendships and the dearest social ties, impelling to endless hatred and deadly combat the fondest friends. Of such pestilent characters the Lord expresses His detestation in these words: Thou shalt not be a detractor nor a whisperer among the people. Of this description were many of the advisers of Saul, who strove to alienate the king's affection from David and to arouse his enmity against him.