An Explanation of Luther's Small Catechism · Martin Luther
I. WHAT IS FORBIDDEN.
ALL LYING is forbidden. [Ps. 34:13+] False witness against other _persons_ is the worst form of lying. All lesser forms of lying are forbidden along with the greater. 1. _False Witness against our Neighbor._ We must not tell a falsehood about another person either in court or in every-day life. We must not BELIE him, that is, tell an untruth about him. BETRAY. [Prov. 11:13+, Prov. 24:28] We must not abuse our neighbor's confidence by revealing his innocent secrets, and thus annoying or harming him. One who pretends to be another's friend, and yet betrays him, is acting a lie. We dare not, however, hide crime; and we must tell what we know about others if the court, or parents, or persons who have a right to know, inquire of us. SLANDER NOR RAISE INJURIOUS REPORTS. [Exod. 23:1+, Lev. 19:16, Ps. 15:1-3] We must not invent nor repeat false reports concerning our neighbor. We must not say behind his back what we fear to say to his face. We must not magnify his faults, [Matt. 7:3-5] nor impute evil motives to him, nor make his words and conduct look as bad as possible. The slanderer is worse than a thief and causes incalculable suffering and misery. [Prov. 25:18+, Jas. 3:5-8] We should remember that words once spoken live on for good or evil, and cannot be unsaid; and that we must give an account to God for every word we speak. [Matt. 12:36] 2. _Lying of Any Kind._ A lie is a conscious falsehood uttered with the purpose of deceiving. It may be acted as well as spoken. [Prov. 6:13] We must not deceive nor try to deceive others by telling an untruth, by hiding the truth or a part of it, by hypocrisy, flattery, boasting, broken promises, conventional lies, "white lies," "lies of necessity," guesses given as facts, etc.
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