Apostates have a spirit of rebellion. Everything Jude has been saying in these verses point to that reality- they have only themselves as authority -their dreams-. They determine their own morality -by defiling the flesh-. They believe themselves superior to the power and influence of evil spirits -by blaspheming the glorious ones-. Friends, we need to be careful to pray for the grace of the Holy Spirit to probe our own hearts for these tendencies- of pride, sexual immorality, self-righteousness, greed, and rebellion. No professing believer is beyond apostasy. None of us are beyond falling away.