1 John 3:8-10

Haweis(i) 8 he that practises sin is of the devil; for from the beginning the devil sinneth. For this purpose the Son of God was manifested, that he might destroy the works of the devil. 9 Every one who is born of God, doth not practise sin, because his seed abideth in him: and he cannot sin, because he is born of God. 10 By this the children of God are manifestly seen, and the children of the devil. Every one that doth not practise righteousness, is not of God, and he that loveth not his brother.