*322 Q. How do we fail to try to know what God has taught? A. We fail to try to know what God has taught by neglecting to learn the Christian doctrine.
*323 Q. Who are they who do not believe all that God has taught? A. They who do not believe all that God has taught are the heretics and infidels.
There are many kinds of unbelievers: atheists, deists, infidels, heretics, apostates, and schismatics. An atheist is one who denies the existence of God, saying there is no God. A deist is one who says he believes God exists, but denies that God ever revealed any religion. These are also called freethinkers. An infidel properly means one who has never been baptized—one who is not of the number of the faithful; that is, those believing in Christ. Sometimes atheists are called infidels. Heretics are those who were baptized and who claim to be Christians, but do not believe all the truths that Our Lord has taught. They accept only a portion of the doctrine of Christ and reject the remainder, and hence they become rebellious children of the Church. They belong to the true Church by being baptized, but do not submit to its teaching and are therefore outcast children, disinherited till they return to the true faith. A schismatic is one who believes everything the Church teaches, but will not submit to the authority of its head—the Holy Father. Such persons do not long remain only schismatics; for once they rise up against the authority of the Church, they soon reject some of its doctrines and thus become heretics; and indeed, since Vatican Council I, all schismatics are heretics.
*324 Q. Who are they who neglect to profess their belief in what God has taught? A. They who neglect to profess their belief in what God has taught are all those who fail to acknowledge the true Church in which they really believe.
There are some outside the Church who feel and believe that the Catholic Church is the true Church, and yet they do not become Catholics, because there are so many difficulties in the way. For example, they have been brought up in another religion, and all their friends, relatives, or associates are opposed to the Catholic religion. Their business, their social life, their worldly interests will all suffer if they become Catholics. So, although they feel they should at once embrace the true religion, they keep putting off till death comes and finds them outside the Church—and most probably guilty of other mortal sins. Such persons cannot be saved, for they reject all the graces God bestows upon them. A very common fault with such people is to excuse this conduct by saying: Oh! I was brought up in the Protestant religion, and everyone ought to live in the religion in which he was brought up. Let me ask: If persons were brought up with some bodily deformity that their parents neglected to have remedied while they were young, would they not use every means themselves to have the deformity removed as soon as they became old enough to see and understand their misfortune? In like manner, if unfortunately parents bring up their children in a false religion—that is, with spiritual deformities, it is the duty of the children to embrace the true religion as soon as they know it. Again persons will say: Oh, I believe one religion as good as another; we are all Christians, and all trying to serve God. If one religion is as good as another, why did not Our Lord allow the old religions—false or true—to remain? If one man says a thing is black and another says it is white, they cannot both be right, for a thing cannot be black and white at the same time. Only one can be right; and, if we are anxious about the color of the object, we must try to find which one is right. Just in the same way all the religions that claim to be Christian contradict one another; one says a thing is false and another says it is true: one says Our Lord taught so and so and another says He did not. Now since it is very important for us to know which is right, we must find out which is really the Church Our Lord established; and when we have found it we will know that all the other pretended Christian religions must be false. Our Lord has given us marks by which we can know His Church, as we saw while speaking of the marks of the Church; and the Roman Catholic Church is the only Church that has all these marks. We say that we are Roman Catholics to show that we are in communion with the Church of Rome, established by St. Peter, the chief of the Apostles.
*325 Q. Can they who fail to profess their faith in the true Church in which they believe expect to be saved while in that state? A. They who fail to profess their faith in the true Church in which they believe cannot expect to be saved while in that state, for Christ has said: "Whoever shall deny Me before men, I will also deny him before My Father who is in Heaven."
326 Q. Are we obliged to make open profession of our faith? A. We are obliged to make open profession of our faith as often as God's honor, our neighbor's spiritual good, or our own requires it. "Whosoever," says Christ, "shall confess Me before men, I will also confess him before My Father who is in Heaven."
It is not necessary for us to proclaim in the streets that we are Catholics; neither need we tell our religion to impudent people that may ask us only to insult us; but when a real need of professing our faith presents itself, then we must profess it. Suppose you are stopping in a hotel in which you are the only Catholic. If flesh-meat is placed before you on a Friday in Lent you must quietly push it aside and ask for fish or other food; although by so doing you will show that you are a Catholic and make a silent profession of your faith. God's honor and your own good require it, for you must keep the laws of God and of His Church on every possible occasion. Suppose again there were in the same hotel some indifferent Catholics, socially your equals or inferiors, who through human respect were ashamed to go to Mass on Sunday; then you should publicly go to Mass and even declare that you must go, for by so doing you would encourage these indifferent Catholics to follow your example. In that case your neighbor's good requires that you profess your faith. In a word, you must keep up the practice of your religion even if by so doing you have to make an open profession of your faith and suffer for it. But suppose it is something that God or the Church does not command you to do but only recommends, such as blessing yourself before meals or some pious practice, you could in public omit such an action if you pleased without any sin or denial of faith, because you violate no law.
327 Q. Which are the sins against hope? A. The sins against hope are presumption and despair.
328 Q. What is presumption? A. Presumption is a rash expectation of salvation without making proper use of the necessary means to obtain it.