Jamieson, Fausset and Brown on 2 Timothy 3:13

13. Reason why persecutions must be expected, and these becoming worse and worse as the end approaches. The breach between light and darkness, so far from being healed, shall be widened [Alford].

evil men--in contrast to the "godly" (2Ti 3:12).

seducers--literally, "conjurers." Magical arts prevailed at Ephesus (Ac 19:19), and had been renounced by many Ephesians on embracing Christianity: but now when Paul was writing to Ephesus, symptoms of a return to conjuring tricks appeared: an undesigned coincidence [Burton]. Probably sorcery will characterize the final apostasy (Re 13:15; 18:23; 22:15).

wax worse--literally, "advance in the direction of worse" (see on 2Ti 3:9). Not contradictory to that verse: there the diffusion of the evil was spoken of; here its intensity [Alford].

deceiving, and being deceived--He who has once begun to deceive others, is the less easily able to recover himself from error, and the more easily embraces in turn the errors of others [Bengel].