“But in the case of prophecy too,” saith some one, “he did the very same thing, saying, ‘but prophesying serveth not for the unbelieving, but for them which believe.’ For the believer hath no need to see a sign, but requires only teaching and catechizing. How then sayest thou,” saith he, “that prophecy is of use to both, when Paul saith ‘not to the unbelieving, but to them which believe?’” If thou wilt accurately examine, thou wilt understand what is said. For he said not, “prophecy is not useful to them unbelieving,” but, “is not for a sign,” as the tongue,” i.e., a mere sign without profit: nor is the tongue any way useful to believers; for its only work is to astonish and to confound; the word “sign” being one of those which may be taken two ways: as when he saith, “show me a sign,” (Ps. lxxxvi. 17.) and adds, “for good:” and again, “I am become as a wonder unto many,” (Ps. lxxi. 7.) i.e., a sign.