Dominus Iesus §11

11. Similarly, the doctrine of faith regarding the unicity of the salvific economy willed by the One and Triune God must be firmly believed, at the source and centre of which is the mystery of the incarnation of the Word, mediator of divine grace on the level of creation and redemption (cf. Col 1:15-20), he who recapitulates all things (cf. Eph 1:10), he “whom God has made our wisdom, our righteousness, and sanctification and redemption”‌ (1 Cor 1:30). In fact, the mystery of Christ has its own intrinsic unity, which extends from the eternal choice in God to the parousia: “he [the Father] chose us in Christ before the foundation of the world to be holy and blameless before him in love”‌ (Eph 1:4); “In Christ we are heirs, having been destined according to the purpose of him who accomplishes all things according to his counsel and will”‌ (Eph 1:11); “For those whom he foreknew he also predestined to be conformed to the image of his Son, in order that he might be the firstborn among many brothers; those whom he predestined he also called; and those whom he called he also justified; and those whom he justified he also glorified”‌ (Rom 8:29-30).

The Church's Magisterium, faithful to divine revelation, reasserts that Jesus Christ is the mediator and the universal redeemer: “The Word of God, through whom all things were made, was made flesh, so that as perfect man he could save all men and sum up all things in himself. The Lord...is he whom the Father raised from the dead, exalted and placed at his right hand, constituting him judge of the living and the dead”‌.³⁴ This salvific mediation implies also the unicity of the redemptive sacrifice of Christ, eternal high priest (cf. Heb 6:20; 9:11; 10:12-14).

(34) Second Vatican Council, Pastoral Constitution Gaudium et spes, 45; cf. also Council of Trent, Decretum de peccato originali, 3: DS 1513.