_Direct._ VI. Be a careful and accurate (though not a vain) distinguisher; and suffer not ambiguity and confusion to deceive you. Suspect every word in your question, and anatomize it, and agree upon the sense of all your common terms, before you dispute with any adversary. It is not only in many words, but in one word or syllable that so much ambiguity and confusion may be contained, as may make a long dispute to be but a vain and ridiculous wrangling.[129] Is it not a ridiculous business to hear men dispute many hours about the _cur credis_, and into what faith is to be resolved; and in the end come to understand, that by cur one of them speaks of the _principium_ or _causa veritatis_, and the other of the _principium patefactionis_, or the _evidentia veritatis_, or some other cause? And when one speaks of the resolution of his faith as into the formal object, and another into the subservient testimony or means, or into the proofs of divine attestation, or many other causes? Or to hear men dispute, Whether Christ died for all; when by "for" one man meaneth "for the benefit of all," and another means "in the place or stead of all, or for the sins of all as the procuring cause, &c.?" Yet here is but a syllable to contain this confusion! What a tedious thing is it to read long disputes between many papists and protestants, about justification, while by justification one meaneth one thing, and another meaneth quite another thing! He that cannot force every word to make a plain confession of its proper signification, that the thing intended may be truly discerned in the word, he will but deceive himself and others, with a wordy, insignificant dispute. _Direct._ VII. Therefore be specially suspicious of metaphors; as being all but ambiguities till an explication hath fixed or determined the sense. It is a noisome thing to hear some dispute upon an unexplained metaphorical word, when neither of them have enucleated the sense, and when there are proper words enow.