[They are] always learning and never able to come to the knowledge of the truth.

2 Timothy 3:7 (NKJV)

As far as the Apostle Paul is concerned, our knowledge of the gospel is more than simply being aware of its truth; it also entails being changed by it.

In his second letter to Timothy Paul writes about how some Christians are undervaluing the gospel by ignoring what Christ had accomplished through His finished work of the cross. Instead, they were continuously chasing after the latest spiritual fads and spurious claims. Sad to say, this is a common experience of many believers today. Furthermore, many of the purported fresh revelations they are following are repackaged old heresies.

Paul describes this group of people as “constantly learning," but they never arrived at "the knowledge of the truth." The Greek word for "learning" has the same meaning as "disciple." In other words, these so-called followers of Jesus never really mature in their faith. They remain faithless and fruitless because they are trying to seek their identity apart from Christ. Even though they appeared to be interested in learning, they were essentially unteachable

Why?

This is due to their selective hearing, in which they only want to know what they want to know. The problem here is not one of ignorance but of disobedience. As a result, they would never advance as disciples since they were not learning or expanding their knowledge of the truth.

In the context of 2 Timothy 3:7, the Greek word for “knowledge” is epignōsis which means precise or perfect truth. Jesus is perfect truth. This is why Paul prays to God to give every believer the spirit of wisdom and revelation, so that we may know Christ fully and experience the fullness of His life in and through us (Ephesians 1:17-18). And when we truly value and walk in the knowledge of the truth that is in Christ, we shall develop and mature as true disciples of Christ yielding fruit for His Kingdom.