Mocking Lawlessness of Self-seeking False Teachers

Jude 1:16-19 

16 These are grumblers, complainers, walking according to their own lusts; and they mouth great swelling words, flattering people to gain advantage. 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.

The false teachers show antinomian (lawless) beliefs which are opposed to sound doctrine and holiness.  They have no eternal fruit to God, but only to their own destruction and judgement.  Here they show their character in constant complaining and murmuring against God and His righteousness, not to mention against all those teaching truth and living accordingly.  Though they speak as great orators, they are only flattering to dissuade others from hearing the truth, doing all they can to deceive and mislead as they are misled.  Jude reminds us to remember what Jesus told us and which the apostles and eyewitness writers of the New Testament wrote down for us.  He warned us about those who would mock God and His word, the Christ (1 Timothy 4:1, 2 Timothy 3:1-5, 2 Peter 2:1, 3:3).  We must spend time in the scriptures to be constantly reminded of these dangers from within (Acts 20:29-31), and be aware of these signs of those not walking in righteousness as followers of Jesus Christ.  Those living for sin and claiming Him are not to be followed or trusted; these serving their own desires end up causing divisions in the congregation over disobedience versus obedience to Christ with non-biblical arguments. These do not have the Spirit of God, and this is why they cannot understand (1 Corinthians 2:12-14, Romans 8:9) nor teach the truth, but fight to undermine it.  We are not to judge these, for God through His word already has done that, but can only be wise to watch and pray, while we offer them the gospel and be wary.  This also means we do not allow the false teaching in our midst.