Love in the Old Testament : God's love and human loves -- Love in the New Testament : the great commandment -- Augustine : love God and all things in God -- Mystical love : union with God -- Troubadours and troubled romance -- Thomas Aquinas : friendship with God -- Martin Luther : the Christian is servant to all -- Christian love is sacrificial love -- Love activists -- Self-regard, other-regard, and mutuality -- Reflections on Christian love.