Charles Spurgeon Commentary 1 John 3:8

"he that doeth sin is of the devil; for the devil sinneth from the beginning. To this end was the Son of God manifested, that he might destroy the works of the devil." — 1 John 3:8 (ASV)

He that committeth sin is of the devil; for the devil sinneth from the beginning. (1 John 3:8)

Ever since he became a devil, he has continued to sin. It was sin that changed the angel into a devil, and a sinner he has always remained.

He that committeth sin is of the devil; for the devil sinneth from the beginning. For this purpose the Son of God was manifested, that he might destroy the works of the devil.

He did not come to make us comfortable while under the devil's sway, but to deliver us from the tyrant's dominion, and lead us to live a godly, sober, righteous, pure life to his praise and glory.