The salvation offered in its fullness to men in Jesus Christ by God the Father's initiative, and brought about and transmitted by the work of the Holy Spirit, is salvation for all people and of the whole person: it is universal and integral salvation. It concerns the human person in all his dimensions: personal and social, spiritual and corporeal, historical and transcendent. It begins to be made a reality already in history, because what is created is good and willed by God, and because the Son of God became one of us39Cf. Second Vatican Ecumenical Council, Pastoral Constitution Gaudium et Spes, 22: AAS 58 (1966), 1043.. Its completion, however, is in the future, when we shall be called, together with all creation (cf. Rom 8), to share in Christ's resurrection and in the eternal communion of life with the Father in the joy of the Holy Spirit. This outlook shows quite clearly the error and deception of purely immanentistic visions of the meaning of history and in humanity's claims to self-salvation.
The salvation offered by God to his children requires their free response and acceptance. It is in this that faith consists, and it is through this that “man freely commits his entire self to God”40Second Vatican Ecumenical Council, Dogmatic Constitution Dei Verbum, 5: AAS 58 (1966), 819., responding to God's prior and superabundant love (cf. 1 Jn 4:10) with concrete love for his brothers and sisters, and with steadfast hope because “he who promised is faithful” (Heb 10:23). In fact, the divine plan of salvation does not consign human creatures to a state of mere passivity or of lesser status in relation to their Creator, because their relationship to God, whom Jesus Christ reveals to us and in whom he freely makes us sharers by the working of the Holy Spirit, is that of a child to its parent: the very relationship that Jesus lives with the Father (cf. Jn 15-17; Gal 4:6-7).
The universality and integrality of the salvation wrought by Christ makes indissoluble the link between the relationship that the person is called to have with God and the responsibility he has towards his neighbour in the concrete circumstances of history. This is sensed, though not always without some confusion or misunderstanding, in humanity's universal quest for truth and meaning, and it becomes the cornerstone of God's covenant with Israel, as attested by the tablets of the Law and the preaching of the Prophets. This link finds a clear and precise expression in the teaching of Jesus Christ and is definitively confirmed by the supreme witness of the giving of his life, in obedience to the Father's will and out of love for his brothers and sisters. To the scribe who asks him “Which commandment is the first of all?” (Mk 12:28), Jesus answers: “The first is: ‘Hear, O Israel: the Lord our God, the Lord is one; and you shall love the Lord your God with all your heart, and with all your soul, and with all your mind, and with all your strength'. The second is this: ‘You shall love your neighbour as yourself'. There is no other commandment greater than these” (Mk 12:29-31). Inextricably linked in the human heart are the relationship with God — recognized as Creator and Father, the source and fulfilment of life and of salvation — and openness in concrete love towards man, who must be treated as another self, even if he is an enemy (cf. Mt 5:43-44). In man's inner dimension are rooted, in the final analysis, the commitment to justice and solidarity, to the building up of a social, economic and political life that corresponds to God's plan.