Dominus Iesus §20

VI. THE CHURCH AND THE OTHER RELIGIONS
IN RELATION TO SALVATION

20. From what has been stated above, some points follow that are necessary for theological reflection as it explores the relationship of the Church and the other religions to salvation.

Above all else, it must be firmly believed that “the Church, a pilgrim now on earth, is necessary for salvation: the one Christ is the mediator and the way of salvation; he is present to us in his body which is the Church. He himself explicitly asserted the necessity of faith and baptism (cf. Mk 16:16; Jn 3:5), and thereby affirmed at the same time the necessity of the Church which men enter through baptism as through a door”‌.⁷⁷ This doctrine must not be set against the universal salvific will of God (cf. 1 Tim 2:4); “it is necessary to keep these two truths together, namely, the real possibility of salvation in Christ for all mankind and the necessity of the Church for this salvation”‌.⁷⁸

The Church is the “universal sacrament of salvation”‌,⁷⁹ since, united always in a mysterious way to the Saviour Jesus Christ, her Head, and subordinated to him, she has, in God's plan, an indispensable relationship with the salvation of every human being.⁸⁰ For those who are not formally and visibly members of the Church, “salvation in Christ is accessible by virtue of a grace which, while having a mysterious relationship to the Church, does not make them formally part of the Church, but enlightens them in a way which is accommodated to their spiritual and material situation. This grace comes from Christ; it is the result of his sacrifice and is communicated by the Holy Spirit”‌;⁸¹ it has a relationship with the Church, which “according to the plan of the Father, has her origin in the mission of the Son and the Holy Spirit”‌.⁸²

(77) Second Vatican Council, Dogmatic Constitution Lumen gentium, 14; cf. Decree Ad gentes, 7; Decree Unitatis redintegratio, 3.

(78) John Paul II, Encyclical Letter Redemptoris missio, 9; cf. Catechism of the Catholic Church, 846-847.

(79) Second Vatican Council, Dogmatic Constitution Lumen gentium, 48.

(80) Cf. St. Cyprian, De catholicae ecclesiae unitate, 6: CCSL 3, 253-254; St. Irenaeus, Adversus haereses, III, 24, 1: SC 211, 472-474.

(81) John Paul II, Encyclical Letter Redemptoris missio, 10.

(82) Second Vatican Council, Decree Ad gentes, 2. The famous formula extra Ecclesiam nullus omnino salvatur is to be interpreted in this sense (cf. Fourth Lateran Council, Cap. 1. De fide catholica: DS 802). Cf. also the Letter of the Holy Office to the Archbishop of Boston: DS 3866-3872.