whom not having known you love; in whom, though now you don't see him, yet believing, you rejoice greatly with joy unspeakable and full of glory--

 (vii) The rebirth of the Christian is a rebirth to love ( 1 John 4:7). Because the life of God is in him, he is cleansed from the essential unforgiving bitterness of the self-centred life and there is in him something of the forgiving and sacrificial love of God. 