Response: We don’t spend all or even a large percentage of our time trying to screen everything being printed or tracking down every heresy rearing its head in the church. Our work would be impossible were it not for the many “Bereans” around the world who act as our eyes and ears and pass along their concerns and useful information.
As for one’s obligation to point out error and persuade others of the truth, most of the New Testament and much of the Old (certainly the major and minor prophets and the epistles) was written for that very purpose. Paul corrected Peter publicly, named those who were leading others astray, and continually combated error in his epistles. We must do the same, if we are to obey God’s Word and “earnestly contend for the faith which was once [for all] delivered unto the saints” (Jude 3). Paul said that the Bible was given for “doctrine, reproof, correction, instruction in righteousness” (2 Timothy:3:16), and he exhorted Timothy to “reprove, rebuke, exhort with all longsuffering and doctrine” (4:2).
Christ himself set the example we must follow. He was gentle with those who had been deceived but sternly rebuked the rabbis who had perverted God’s Word by false teaching, and He did so publicly. As for the unsaved, Paul disputed daily in the synagogues and in the marketplace (Acts:17:17), doing all he could to “persuade men” (2 Corinthians:5:11). Yes, only the Holy Spirit can convict and convert the soul, but He is pleased to use us as His instruments. What a responsibility and privilege we have!