Who being past feeling have given themselves over to lasciviousness, to work all uncleanness with greediness.
The chief danger of the poison called nightshade is its tendency to deprive the stomach of sensibility, and so to render the most powerful antidotes of no avail. Exactly like this is the effect of long continued evil habits. Those who are governed by them lose all moral sensibility. Nothing will work upon them. They are "past feeling." Seeing, they see and do not perceive, and hearing, they hear and do not understand. The conscience becomes as it were "seared with a hot iron." In that state, applications which before would have made it start and tremble, fail to move it.
(R. A. Bertram.)
Parallel VersesKJV: Who being past feeling have given themselves over unto lasciviousness, to work all uncleanness with greediness.