What does the Bible say about the purifying word of Christ?

In John 15:3, Christ declares, 'Now ye are clean through the word which I have spoken unto you,' highlighting the purifying effect of His words. This affirmation teaches that the voice of Christ, as the Great Prophet, has the power to cleanse and sanctify believers. His ministry is described throughout the Gospels as one that separates the genuine followers from those who merely profess faith without true union with Him. The purifying word of Christ is essential to the believers' sanctification and indicates a transformative relationship with Him, the true vine.