‘For there are certain men’ – I suppose there is a happy implication here because the language suggests they are a minority, at least at the time Jude writes and in the place to which he writes. ‘There are certain men’ – it is the language of a minority – ‘crept in.
One of the great signs of somebody who is a polluter of truth, an errorist, a heretic, someone taking us off the track, is irreverence towards the Scriptures, towards the Lord, towards truth. He is ready to play fast and loose with the truth. And this is very serious because we see it even among some evangelical people.
There was a man in recent years who attracted tremendous attention to himself. He appeared on the surface to be a preacher of somewhat Reformed views and right theology and Calvinistic views, and he was said at one point to be the most watched or listened to preacher on the internet. But if you heard any of his preaching, it was fearfully irreverent. He twisted and turned Scripture in different directions and spoke lightly of it. He was even famous for being the cursing preacher, if you please. He was indifferent to the language he used, and there were many people who were not picking up the warnings, but that word ungodly described him accurately.