1 John 2:29

"If ye know that He is righteous, know ye that every one that doeth righteousness is born of Him." The righteousness which at present is ours is of faith. Perfect righteousness is not, save only in the angels: and scarce in angels, if they be compared with God: yet if there be any perfect righteousness of souls and spirits which God hath created, it is in the angels, holy, just, good, by no lapse turned aside, by no pride falling, but remaining ever in the contemplation of the Word of God, and having nothing else sweet unto them save Him by whom they were created; in them is perfect righteousness: but in us it has begun to be, of faith, by the Spirit. Ye heard when the Psalm was read, "Begin to the Lord in confession." "Begin," saith it; the beginning of our righteousness is the confession of sins. Thou hast begun not to defend thy sin; now hast thou made a beginning of righteousness: but it shall be perfected in thee when to do nothing else shall delight thee, when "death shall be swallowed up in victory," when there shall be no itching of lust, when there shall be no struggling with flesh and blood, when there shall be the palm of victory, the triumph over the enemy; then shall there be perfect righteousness. At present we are still fighting: if we fight we are in the lists; we smite and are smitten; but who shall conquer, remains to be seen. And that man conquers, who even when he smites presumes not on his own strength, but relies upon God that cheers him on. The devil is alone when he fights against us. If we are with God, we overcome the devil: for if thou fight alone with the devil, thou wilt be overcome. He is a skillful enemy: how may palms has he won! Consider to what he has cast us down! That we are born mortal, comes of this, that he in the first place cast down from Paradise our very original. What then is to be done, seeing he is so well practised? Let the Almighty be invoked to thine aid against the devices of the devil. Let Him dwell in thee, who cannot be overcome, and thou shalt securely overcome him who is wont to overcome. But to overcome whom? Those in whom God dwelleth not.