These idolaters of earnestness would make us condemn every witness for the truth, and every opponent of false teaching, from the time of the Lord Jesus down to this day. The Scribes and Pharisees were "in earnest," and yet our Lord opposed them. And shall we dare even to hint a suspicion that they ought to have been let alone?--Queen Mary, and Bonner, and Gardiner were "in earnest" in restoring Popery, and trying to put down Protestantism, and yet Ridley and Latimer opposed them to the death. And shall we dare to say that as both parties were "in earnest," both were in the right?--Devil-worshippers and idolaters at this day are in earnest, and yet our missionaries labour to expose their errors. And shall we dare to say that "earnestness" would take them to heaven, and that missionaries to heathen and Roman Catholics had better stay at home?--Are we really going to admit that the Bible does not show us what is truth? Are we really going to put a mere vague thing called "earnestness," in the place of Christ, and to maintain that no "earnest" man can be wrong? God forbid that we should give place to such doctrine! I shrink with horror from such theology. I warn men solemnly to beware of being carried away by it, for it is common and most seductive in this day. Beware of it, for it is only a new form of an old error,--that old error which says that a man "Can't be wrong whose life is in the right." Admire zeal. Seek after zeal. Encourage zeal. But see that your own zeal be true. See that the zeal which you admire in others is a zeal "according to knowledge,"--a zeal from right motives,--a zeal that can bring chapter and verse out of the Bible for its foundation. Any zeal but this is but a false fire. It is not lighted by the Holy Ghost. III. I pass on now to the third thing I proposed to speak of. Let me show _why it is good for a man to be zealous_. It is certain that God never gave man a commandment which it was not man's interest as well as duty to obey. He never set a grace before His believing people which His people will not find it their highest happiness to follow after. This is true of all the graces of the Christian character. Perhaps it is pre-eminently true in the case of zeal.