Men tell us that our preaching should be positive and not negative, that we can preach the truth without attacking error. But if we follow that advice we shall have to close our Bible and desert its teachings. The New Testament is a polemic book almost from beginning to end. Some years ago I was in a company of teachers of the Bible in the colleges and other educational institutions of America. One of the most eminent theological professors in the country made an address. In it he admitted that