17 Q. For whom did Jesus Christ die?
A. Jesus Christ died for the salvation of all men, and made satisfaction for all.
18 Q. If Jesus Christ died for the salvation of all men, why are not all men saved?
A. Jesus Christ died for all, but not all are saved, because not all will acknowledge Him; all do not observe His Law; all do not avail themselves of the means of salvation He has left us.
19 Q. To be saved is it enough that Jesus Christ has died for us?
A. No, it is not enough for our salvation that Jesus Christ has died for us; it is also necessary that the fruit of His Passion and death be applied to each one of us, which is accomplished especially by means of the Sacraments instituted for this end by Jesus Christ Himself; and as many either do not receive the Sacraments at all, or do not receive them well, they thus render the death of Jesus Christ useless in their regard.
The Church in Particular
A. To be a member of the Church it is necessary to be baptised, to believe and profess the teaching of Jesus Christ, to participate in the same Sacraments, and to acknowledge the Pope and the other lawful pastors of the Church.
13 Q. How can the Church of Jesus Christ be distinguished from the numerous societies or sects founded by men, and calling themselves Christian?
A. From the numerous societies or sects founded by men and calling themselves Christian, the Church of Jesus Christ is easily distinguished by four marks: She is One, Holy, Catholic and Apostolic.
14 Q. Why is the Church called One?
A. The true Church is called One, because her children of all ages and places are united together in the same faith, in the same worship, in the same law; and in participation of the same Sacraments, under the same visible Head, the Roman Pontiff.
15 Q. Can there not be several Churches?
A. No, there cannot be more than one Church; for as there is but one God, one Faith and one Baptism, there is and can be but one true Church.
22 Q. In what does the Soul of the Church consist?
A. The Soul of the Church consists in her internal and spiritual endowments, that is, faith, hope, charity, the gifts of grace and of the Holy Ghost, together with all the heavenly treasures which are hers through the merits of our Redeemer, Jesus Christ, and of the Saints.
23 Q. In what does the Body of the Church consist?
A. The Body of the Church consists in her external and visible aspect, that is, in the association of her members, in her worship, in her teaching-power and in her external rule and government.
24 Q. To be saved, is it enough to be any sort of member of the Catholic Church?
A. No, to be saved it is not enough to be any sort of member of the Catholic Church; it is necessary to be a living member.
25 Q. Who are the living members of the Church?
A. The living members of the Church are the just, and the just alone, that is, those who are actually in the grace of God.
26 Q. And who are the dead members?
A. The dead members of the Church are the faithful in mortal sin.
27 Q. Can one be saved outside the Catholic, Apostolic and Roman Church?
A. No, no one can be saved outside the Catholic, Apostolic Roman Church, just as no one could be saved from the flood outside the Ark of Noah, which was a figure of the Church.
29 Q. But if a man through no fault of his own is outside the Church, can he be saved?
A. If he is outside the Church through no fault of his, that is, if he is in good faith, and if he has received Baptism, or at least has the implicit desire of Baptism; and if, moreover, he sincerely seeks the truth and does God's will as best he can such a man is indeed separated from the body of the Church, but is united to the soul of the Church and consequently is on the way of salvation
30 Q. Suppose that a man is a member of the Catholic Church, but does not put her teaching into practice, will he be saved?
A. He who is a member of the Catholic Church and does not put her teaching into practice is a dead member, and hence will not be saved; for towards the salvation of an adult not only Baptism and faith are required, but, furthermore, works in keeping with faith.
Those Outside the Communion of Saints
10 Q. Who are they who do not belong to the Communion of Saints?
A. Those who are damned do not belong to the Communion of Saints in the other life; and in this life those who belong neither to the body nor to the soul of the Church, that is, those who are in mortal sin, and who are outside the true Church.
11 Q. Who are they who are outside the true Church?
A. Outside the true Church are: Infidels, Jews, heretics, apostates, schismatics, and the excommunicated.
12 Q. Who are infidels?
A. Infidels are those who have not been baptised and do not believe in Jesus Christ, because they either believe in and worship false gods as idolaters do, or though admitting one true God, they do not believe in the Messiah, neither as already come in the Person of Jesus Christ, nor as to come; for instance, Mohammedans and the like.
13 Q. Who are the Jews?
A. The Jews are those who profess the Law of Moses; have not received baptism; and do not believe in Jesus Christ.
14 Q. Who are heretics?
A. Heretics are those of the baptised who obstinately refuse to believe some truth revealed by God and taught as an article of faith by the Catholic Church; for example, the Arians, the Nestorians and the various sects of Protestants.
Necessity of Baptism and Obligations of the Baptised
16 Q. Is Baptism necessary to salvation?
A. Baptism is absolutely necessary to salvation, for our Lord has expressly said: "Unless a man be born again of water and the Holy Ghost, he cannot enter into the Kingdom of God."
17 Q. Can the absence of Baptism be supplied in any other way?
A. The absence of Baptism can be supplied by martyrdom, which is called Baptism of Blood, or by an act of perfect love of God, or of contrition, along with the desire, at least implicit, of Baptism, and this is called Baptism of Desire.
The First Commandment
14 Q. What is heresy?
A. Heresy is a culpable error of the intellect by which some truth of faith is obstinately denied.