<p>1:4 <i>For there are certain people who have crept in secretly, who long ago were designated for condemnation, ungodly men, turning the grace of our God into a license for immorality, and who deny our only Master and Lord, Jesus Christ</i>- This parallels rejecting Jesus as Master and Lord with rejecting His moral demands. If He truly is Lord and Master, we simply won&rsquo;t live the immoral life which Jude criticizes. The warnings of 2 Peter 2 about these men had now come true. The language of creeping in secretly suggests a conscious program of infiltration; the same group are spoken of in Gal. 2:4 as being Judaist false teachers. 2 Peter 2 was addressed to Jewish converts, perhaps those Peter had baptized at Pentecost who were now refugees in Asia; so we can assume that it was to this same group that Jude was writing, seeing he uses 2 Peter 2 so consciously. These Judaists were actually appealing to the lusts of the flesh by allowing gross immorality, justified by a tokenistic obedience to some Jewish traditions. This is why in several of the New Testament epistles addressed to Gentiles, there is warning against the Judaizers. The opportunity to continue in sexual immorality whilst ostensibly having justification by works was very attractive to them. This explains why in Corinth, Ephesus, Thyatira and elsewhere there is evidence that the church meetings were a time of sexual immorality, using prostitutes as part of the worship in the same way as they were used in the surrounding religious cults.</p>