(b) If penitents are very ignorant Catholics (e.g., young children), it is clear that they have not made an act of faith as they should, for no one believes what he does not know. They should, therefore, be instructed that it is their duty to acquire more knowledge, and to make an act of faith along with their other prayers. Regarding absolution, see 924.
(c) If penitents are instructed but not practical, the confession that they have neglected prayer, Mass, and the Sacraments, means that they have also neglected the command of making acts of faith. It is not necessary, therefore, that the confessor interrogate or instruct them about this command, and he may absolve them, if they are resolved to amend. It is well, however, to recommend daily acts of faith, hope, charity and contrition to careless Catholics, especially to those who cannot attend Mass or receive the Sacraments often.
938. The Commandment of External Profession of Faith.—The third commandment of faith given above (see 913) is both negative and affirmative: (a) as negative, it forbids denial of the faith or profession of error opposed to faith; (b) as affirmative, it commands that one make open profession of one’s faith.
939. The existence of a prohibition against denial of the faith or profession of error is taught in scripture and the sinfulness of such denial is clear from its nature. (a) “He that shall deny Me before men, I will also deny him before My Father who is in Heaven” (Matt., x. 33). Denial of Christ is a grievous sin, for it entails denial by Christ. (b) He who denies the faith is a heretic or infidel, if he means what he says; he lies, if he does not mean what he says, and his lie is a grave injury to God, whose truth is called into question, and against the neighbor, who is scandalized.
940. With reference to its voluntariness, denial of faith is either direct or indirect. (a) It is direct, when one intends to deny the faith; (b) it is indirect, when one does not intend to deny the faith, but wills to use words, acts, etc., which either from their signification or use, or from the meaning that will or may be given them by others, will in the circumstances express a denial of the faith. Examples: A convert from paganism conceals a crucifix in the idol of a temple and then joins the pagans in their customary bows of reverence, while intending only adoration to Christ crucified and detesting the idol. Titus takes off his hat when passing any church, as a mark of respect for the good they do. Balbus, a convert from Nestorianism, recites the names of Nestorius and Dioscurus at Mass, intending only to honor the patron Saints of those two heresiarchs.
941. There are three ways of denying the faith: (a) by words, spoken or written, as when one says: “I am not a Catholic,” “I do not believe in miracles”; (b) by acts, as when one dissuades persons of good faith from entering the Church, or moves them to abandon it, or refuses to genuflect before the Blessed Sacrament, or studiously excludes scapulars, pictures and all religious symbols; (c) by omission, as when one fails to answer calumnies against faith, which one could profitably answer, or fails to protest when another speaks of oneself as a non-Catholic.
942. There are various ways in which error opposed to faith is professed: (a) by words, as when one says that one is a freethinker or Christian Scientist; (b) by acts, as when one offers incense to an idol, or receives the Lord’s Supper in a Lutheran church, or cheers an anti-religious address; (c) by signs, as when one uses the Masonic grip, wears the robes of a Buddhist bonze, takes a Mohammedan or pagan name, etc., in order to pass oneself off as a non-Catholic; (d) by omission, as when one is silent when introduced as a Rationalist, or makes no protest when Indifferentism is being advocated by one’s companions.
943. The following are not a denial of faith or profession of error:
(a) Words that deny, not one’s allegiance to religion, but one’s acceptance of it as qualified by some calumnious designation. Examples: Titus denies that he is a “Papist,” because he wishes his questioner to use a term that is not intended to be an insult. Balbus, entering a pagan region where the name Christian has the meaning of criminal or enemy on account of crimes committed there by white men in past times, says to the tribesmen that he is not a Christian, but a follower of Jesus and a Catholic.
(b) Words that conceal one’s rank or state in the Church, are not against faith, because one can hold the faith without being in a certain rank or state in the Church, Thus, St. Peter’s denial that he was a follower of Jesus, that he had ever known Him, etc., was, according to some authorities, not a denial of the Divinity of Jesus or of the truth of His teaching. Example: A Catholic who hides or denies his character of priest or religious, his membership in a Catholic family, organization, race, does not thereby necessarily deny his faith.