Charles Ellicott Commentary 2 Timothy 3:7

"ever learning, and never able to come to the knowledge of the truth." — 2 Timothy 3:7 (ASV)

Ever learning, and never able to come to the knowledge of the truth.—A morbid love of novelty, and a hope to penetrate into mysteries not revealed to God’s true teachers, spurred these female learners on. But they never reached “to the full knowledge of the truth”—for this is the more accurate rendering of the Greek word—because by their evil life their heart was hardened.

That some of these false teachers laid claim to occult arts, to a knowledge of magic and sorcery, is clear from the statement contained in the next verse, where certain sorcerers of the time of Moses are compared to them.