CSDC 54

Jesus Christ reveals to us that “God is love” (1 Jn 4:8) and he teaches us that “the fundamental law of human perfection, and consequently of the transformation of the world, is the new commandment of love. He assures those who trust in the love of God that the way of love is open to all people and that the effort to establish a universal brotherhood will not be in vain”⁶⁶ Second Vatican Ecumenical Council, Pastoral Constitution Gaudium et Spes, 38: AAS 58AAS — Acta Apostolicae Sedis (official gazette of the Holy See)Volume 58 (1966) at vatican.va — scanned PDF (1966), 1055-1056.. This law is called to become the ultimate measure and rule of every dynamic related to human relations. In short, it is the very mystery of God, Trinitarian Love, that is the basis of the meaning and value of the person, of social relations, of human activity in the world, insofar as humanity has received the revelation of this and a share in it through Christ in his Spirit.