28:1
Nunquam jurare, sed semper verum dicere, pari observa studio. Nam sicut carnalibus pro terrore fraudis jurare permistum est, sic prohibita sunt spiritualibus, etiam dum sibi bene conscii sunt, sacramenta. Sit, inquit, sermo vester, Est, est; Non, non; quod autem plus est, a malo est (Jac. v). Cave itaque jurare in bono, quia de malo est. Et propterea dicitur esse a malo, eo quod jurandi necessitas ex infideli sit conscientia. Ejus autem hominis jurandi extorquetur necessitas, eujus fides manet in dubio. Tu vero, quae simplicitatem cordis debes ostendere labiis, cur te spontaneo alliges sacramento? Tolle jurandi usum in bono, et non perjurabis in malo.
絕不起誓，總要說實話，當以同等的熱心遵守。因為正如為著欺詐的懼怕，容許屬肉之人起誓，照樣，誓言對屬靈之人卻是被禁止的，連他們自己良心無虧時也是如此。祂說：「你們的話，是就說是，不是就說不是；若再多說，就是出於那惡者」（雅各書五章）。所以要謹防在善事上起誓，因為這是出於惡。所以說它出於惡，緣故乃是起誓的必要出於不信的良心。因為唯有信心存疑的人，才被強逼有起誓的必要。但你既當以口顯出你心中的純正，為何用自願的誓言捆綁自己呢？除去在善事上起誓的習慣，你就不會在惡事上起假誓。
Never to swear, but always to speak the truth, observe with equal zeal. For just as it is permitted to the carnal to swear for the terror of fraud, so oaths are forbidden to the spiritual, even when they are well aware in their own conscience. 'Let your speech,' He says, 'be Yea, yea; Nay, nay; for whatever is more than this comes of evil' (James 5). Beware therefore of swearing in a good cause, because it is of evil. And it is said to be of evil for this reason, that the necessity of swearing arises from an unbelieving conscience. For the necessity of swearing is extorted from that man whose faith remains in doubt. But you, who ought to show the simplicity of your heart with your lips, why do you bind yourself by a voluntary oath? Take away the practice of swearing in a good cause, and you will not forswear yourself in an evil one.
28:2
Loquere veritatem ex corde, et aberit jurandi necessitas. Legimus enim: Ne assuescas jurationi, quomam multi casus in illa (Eccl. XXV)
從心裡說實話，起誓的必要就要止息。因為我們讀到：「不要習慣起誓，因為其中有許多跌倒」（便西拉智訓二十三章）。
Speak the truth from the heart, and the necessity of swearing will be absent. For we read: 'Accustom not yourself to swearing, for in it are many falls' (Ecclesiasticus 23).