If you know that he is upright you must recognize that everyone whose life is upright is a child of his.
You must see what great love the Father has lavished on us by letting us be called God's children -- which is what we are! The reason why the world does not acknowledge us is that it did not acknowledge him.
My dear friends, we are already God's children, but what we shall be in the future has not yet been revealed. We are well aware that when he appears we shall be like him, because we shall see him as he really is.
Whoever treasures this hope of him purifies himself, to be as pure as he is.
Whoever sins, acts wickedly, because all sin is wickedness.
Now you are well aware that he has appeared in order to take sins away, and that in him there is no sin.
No one who remains in him sins, and whoever sins has neither seen him nor recognized him.