The one who does what is sinful is of the devil, because the devil has been sinning from the beginning. The reason the Son of God appeared was to destroy the devil’s work. (1 John 3:8, NIV)
John Wesley’s sermon “The End of Christ’s Coming” begins by looking at the ways humanity has extolled virtue and declaimed vice but always found itself unequal to the task of living with virtue and avoiding vice. The cause of this sad condition, Wesley wrote, was that we look in ourselves for the tools to do this when they can only be found in God.
The bulk of the sermon describes the work of the devil and how God destroys those works in the life of the Christian. He closes with an exhortation not to stop short before Christ has completed this work in us.
Be not content with any religion which does not imply the destruction of all the works of the devil; that is, of all sin. We know, weakness of understanding, and a thousand infirmities, will remain, while this corruptible body remains; but sin need not remain: This is that work of the devil, eminently so called, which the Son of God was manifested to destroy in this present life. He is able, he is willing, to destroy it now, in all that believe in him.