1 John 3:8; 1 John 3:12; 1 John 3:18

1 John 3:8

8 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.

1 John 3:12

12 Not as Cain, who was of that wicked one, and slew his brother. And wherefore slew he him? Because his own works were evil, and his brother's righteous.

1 John 3:18

18 My little children, let us not love in word, neither in tongue; but in deed and in truth.