John MacArthur, Final word, 2019, p. 115.
No true believer is completely satisfied with his spiritual progress. Under the illuminating, sanctifying influence of the Holy Spirit, all of us are aware of the areas in our lives that still need to be refined and disciplined for the sake of godliness. In fact, the more we mature, the more capable we are of spotting the sin that still remains in our hearts.
John MacArthur, Final word, 2019, p. 115.