1 John 3:7-10

7 Little children, let no one lead you astray. He who does righteousness is righteous, even as he is righteous.  8 He who sins is of the devil, for the devil has been sinning from the beginning. To this end the Son of God was revealed, that he might destroy the works of the devil.  9 Whoever is born of God doesn't commit sin, because his seed remains in him; and he can't sin, because he is born of God.  10 In this the children of God are revealed, and the children of the devil. Whoever doesn't do righteousness is not of God, neither is he who doesn't love his brother.