17 Even so, every good tree produces good fruit; but the corrupt tree produces evil fruit. 18 A good tree can’t produce evil fruit, neither can a corrupt tree produce good fruit. 19 Every tree that doesn’t grow good fruit is cut down, and thrown into the fire. 20 Therefore, by their fruits you will know them.
Matthew Henry's Commentary on Matthew 7:17-20
Commentary on Matthew 7:15-20
(Read Matthew 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.