7:15-20 Nothing so much prevents men from entering the strait gate, and becoming true followers of Christ, as the carnal, soothing, flattering doctrines of those who oppose the truth. They may be known by the drift and effects of their doctrines. Some part of their temper and conduct is contrary to the mind of Christ. Those opinions come not from God that lead to sin.

20. Wherefore by their fruits ye shall know them—that is, But the point I now press is not so much the end of such, as the means of detecting them; and this, as already said, is their fruits. The hypocrisy of teachers now leads to a solemn warning against religious hypocrisy in general.