"Hear, O Israel, the Lord our God is one Lord..." (Deut 6:4; Mk 12:29). "The supreme being must be unique, without equal...If God is not one, he is not God." (Tertullian, Adv Marc 1,3,5: PL 2, 274).

Catechism of the Catholic Church: 228

The name Jesus means "God Save;" the title "Christ" means "Anointed One;" the title "Son of God" signifies the unique and eternal relationship of Jesus Christ to God his father; the title "Lord" indicates divine sovereignty.

Catechism of the Catholic Church: 452-455

Jesus Christ possesses two natures, one divine and the other human, not confused, but united in the one person of God's Son. The Incarnation is therefore the mystery of the wonderful union of the divine and human natures in the one person of the Word.

Catechism of the Catholic Church: 481, 483

"Christ died for our sins in accordance with the scriptures" (1 Cor 15:3); By his loving obedience to the Father, "unto death, even death on a cross" (Phil 2:8), Jesus fulfills the atoning mission (Isa 53:10) of the suffering Servant, who will "make many righteous; and he shall bear their iniquities" (Isa 53:11; Rom 5:19)

Catechism of the Catholic Church: 619, 623

Jesus did really die and through his death for us conquered death and the devil "who has the power of death" (Heb 2:14); Christ, "the first-born from the dead" (Col 1:18), is the principle of our own resurrection, even now by the justification of our souls (ROM 6:4), and one day by the new life he will impart to our bodies (ROM 8:11).

Catechism of the Catholic Church: 636, 658

Jesus Christ, the head of the Church, precedes us into the Father's glorious kingdom so that we, the members of his Body, may live in the hope of one day being with him for ever. Having entered the sanctuary of heaven once and for all, He intercedes constantly for us as the mediator who assures us of the permanent outpouring of the Holy Spirit.

Catechism of the Catholic Church: 666-667

When He comes at the end of time to judge the living and the dead, the glorious Christ will reveal the secret disposition of hearts and will render to each man according to his works and according to his acceptance or refusal of grace.

Catechism of the Catholic Church: 682

The Holy Spirit, whom Christ the head pours out on his members, builds, animates, and sanctifies the Church. She is the sacrament of the Holy Trinity's communion with men.

Catechism of the Catholic Church: 747

This is the sole Church of Christ, which in the Creed we profess to be "one, holy, catholic, and apostolic". These four characteristics, inseparably linked with each other, indicate essential features of the Church and her mission. It is Christ who, through the Holy Spirit, make His Church one, holy, catholic, and apostolic, and it is He who calls her to realize each of these qualities.

Catechism of the Catholic Church: 811

By Christ's will, the Church possesses the power to forgive the sins of the baptized and exercises it through bishops and priests normally in the sacrament of Penance. "...for the risen Christ entrusted to the apostles the power to forgive sins when he gave them the Holy Spirit.

Catechism of the Catholic Church: 984, 986

By death the soul is separated from the body, but in the resurrection God will give incorruptible life to our body, transformed by reunion with our soul. Just as Christ is risen and lives for ever, so all of us will rise at the last day.

Catechism of the Catholic Church: 1016

At the end of time, the Kingdom of God will come in its fullness. Then the just will reign with Christ for ever, glorified in body and soul, and the material universe itself will be transformed. God will then be "all in all'' (1 Cor 15:28), in eternal life.

Catechism of the Catholic Church: 1060

In Hebrew, amen comes from the same root as the word "believe." This root expresses solidarity, trustworthiness, faithfulness. And so we can understand why "Amen" may express both God's faithfulness towards us and our trust in Him.

Catechism of the Catholic Church: 1062