Jude 1:19 Meaning

17But, beloved, remember ye the words which were spoken before of the apostles of our Lord Jesus Christ;

18How that they told you there should be mockers in the last time, who should walk after their own ungodly lusts.

19These be they who separate themselves, sensual, having not the Spirit.

20But ye, beloved, building up yourselves on your most holy faith, praying in the Holy Ghost,

21Keep yourselves in the love of God, looking for the mercy of our Lord Jesus Christ unto eternal life.