Let no one deceive you in any way. For it will not be, unless the departure comes first, and the man of sin is revealed, the son of destruction,
“The son of perdition.” This is the same appellation which the Saviour bestowed on Judas; see it explained in the notes on John 18:12. It may mean either that he would be the cause of ruin to others, or that he would himself be devoted to destruction. It would seem here rather to be used in the latter sense, though this is not absolutely certain. The phrase, whichever interpretation be adopted, is used to denote one of eminent wickedness.