The genuine evidence of the Holy Spirit’s influence in a person’s life is not material prosperity, mindless emotionalism, or supposed miracles. Rather, it is sanctification: the believer’s growth in spiritual maturity, practical holiness, and Christlikeness through the power and leading of the Holy Spirit (as He applies biblical truth to the hearts of His saints). A true work of the Spirit convicts the heart of sin, combats worldly lusts, and cultivates spiritual fruit in the lives of God’s people.
John MacArthur