Theophylact of Bulgaria
The order is this: shameful and defiling men; their heart is trained in covetousness, that is, they are skilled in covetousness; children of curse; feasting together with you; having eyes full of lust and unceasing sin.
They entice unstable souls, whom Paul also called women weighed down with sins (2 Tim 3:6). They have forsaken the straight way and followed the way of Balaam, the son of Bosor, and so forth.
Their voices are waterless springs, clouds driven by a storm, and so forth. Why is darkness prepared for them in the age to come? Because of their excessive vanity.
Through this vanity, by impurities and fleshly lusts, they entice those who had formerly been in error and had sincerely abandoned it, so that they return like a dog to its own vomit.
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What is inserted explains and confirms their vanity. The meaning is this: they have nothing proper to purity, he says, but cling to the pure community like stains on a clean garment.
When they deceive someone and succeed in making the men and women caught in their nets impure, they regard this as pleasure, completing their own corruption.
Even when they feast with you, they do this not from love and communion with others, but because they find this time convenient for deceiving women.
For having eyes, they look at nothing except lust. Keeping this constantly in view and sinning, as children of curse, they entice unstable souls.
Their heart has been trained in nothing other than covetousness, that is, in corruption or in greed.