Can, then, He who for Christians is the Great Teacher, and who claims to be in some sense the only one (matt. Xxiii. 8) lead us astray? TO prove the possibility, Dr. Sanday stamps the expression He uses, He maketh the sun to rise as imperfect science (1) and to those who, timidly enough, maintain that questions relating to the author ship Of the Old Testament touch more nearly the subject-matter of Revelation, he puts the question, Are these distinctions valid? Are they valid enough to be insisted upon so strongly as they must be if the arguments based upon them are to hold good?'