17 But you, beloved, remember the words which were spoken before by the apostles of our Lord Jesus Christ: 18 how they told you that there would be mockers in the last time who would walk according to their own ungodly lusts. 19 These are sensual persons, who cause divisions, not having the Spirit. (Jude 17–19, NKJV)
In contrast to the flattering words of false teachers (whose objective is personal advantage, Jude 16), the words of the apostles are sound and solid, saving souls from eternal ruin. Those who mock the apostolic doctrine do so at their own peril. Driven by lusts and causing divisions, false teachers do not have the Spirit of God, because they are not following the word given to us by the Spirit (Jno. 16:13). And, please notice the cause of division is the one who walks in his own desires and refuses to follow the apostles’ words (1 Cor. 14:37). Let us learn, remember and walk by the apostles’ teaching, which is “the faith which was once for all delivered to the saints” (Jude 3).