Seeing you have purified your souls in your obedience to the truth through the Spirit in sincere brotherly affection, love one another from the heart fervently:

 (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. 