Verse 16.— As also in all of his epistles. The apostle says that Paul spoke in all of his epistles the things in this his epistle announced. From this expression we gather the idea that he had seen other writings of Paul than those addressed to the Christians in Asia Minor. Some things hard to be understood. Even at the present day there is not unanimity among writers concerning many things from Paul's pen. Which they that are unlearned and unstable. Those that are ignorant and those that are not fixed, but are vacillating in disposition, base false doctrine upon some of Paul's sayings, as they do upon other portions of Scripture, and thus bring upon themselves destruction.