1 John 3:8-10

But the one who indulges in a sinful life is of the devil, because the devil has been sinning from the beginning. The reason the Son of God was revealed was to undo and destroy the works of the devil. Everyone who is truly God’s child will refuse to keep sinning because God’s seed remains within him, and he is unable to continue sinning because he has been fathered by God himself. Here is how God’s children can be clearly distinguished from the children of the Evil One. Anyone who does not demonstrate righteousness and show love to fellow believers is not living with God as his source.