Chapter — Slater, Manual of Moral Theology
Chapter II. Prayer
PRAYER sometimes means any pious affection by which the mind and heart are raised to God. More strictly, it is the petitioning of God for what we stand in need of, and this is called the prayer of petition to distinguish it from the more general signification of the term.
Mental prayer is made with the internal faculties of the soul, while vocal prayer is made with the lips also.
Public prayer is offered in the name of the Church by authorized ministers in forms approved by the Church; all other is private prayer. Public worship is subject to the authority of the Church, which has regulated it by a large body of laws and decrees. Unauthorized forms of prayer may not be used in public worship, and it has been prescribed that only the litanies which are found in the Breviary and in the more recent editions of the Ritual, or such as have been specially approved by the Holy See, may be used in public. Moreover, no litanies may be published even for private use without the approbation of the Ordinary (Can. 1259).
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For adults, prayer is a necessary means of obtaining salvation; for there are certain graces necessary for salvation, such as final perseverance, which God only grants in answer to prayer, as St Augustine teaches.11 Prayer is also of precept: “We ought always to pray and not to faint.2 This precept is grave of itself, and for its fulfilment requires that we should pray frequently. Beyond saying this, it is difficult to determine precisely what neglect of prayer is required for a mortal or a venial sin, It would seem certain, however, that grave sin would be committed by altogether neglecting prayer for a whole year. The faithful rightly accuse themselves in confession when they have omitted morning or night prayers, for those times are the most suitable for fulfilling this duty, and if no prayers are said then, they will hardly be said at other times; moreover, the omission will usually be due to sloth or carelessness about spiritual things,
1 De bono persev., c. 16.
2 Luke xviii 1.
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Our Lord promised that prayer when rightly made would be heard by God: “‘ I say to you, Ask and it shall be given you: seek and you shall find; knock and it shall be opened to you.1 We learn from his teaching and from the nature of prayer what qualities it must have in order to be acceptable to God and heard by him. The object prayed for must be necessary, or at any rate useful for salvation. Not only spiritual blessings are proper objects of prayer but temporal blessings as well, as far as they conduce to the welfare of the soul. Prayer must be persevering: God has promised to hear prayer, but he has not promised to hear it at once. The time must be left to his wisdom and providence with due conformity to his holy will. Prayer must come from a humble heart, in which faith, hope, and charity dwell, in order to merit the promises of God. Moreover, God will not do violence to man’s free will, and so if prayer is offered for someone else, its effect to some extent depends on that person’s dispositions and free will. He may, if he pleases, put obstacles in the way, which will prevent the prayer from obtaining the precise effect wished for in his regard. ‘Theologians conclude that prayer must be made for one’s self in order to be infallibly heard by God.
1 Luke xi 9.
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We are obliged by precept only to pray to God, unless we admit with the common opinion that anyone who should never pray to the blessed Virgin Mary would sin venially by neglecting so powerful a means of salvation. We may, however, lawfully and with fruit pray to the angels and saints, more probably to the holy souls detained in purgatory, and in private to anyone whom with reasonable certainty we believe to be with God in heaven, that they may intercede with him for us.
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We should pray for all men whom it will benefit without excluding anyone in our private prayers. It is useless praying for the damned, and the Church forbids her ministers to pray publicly for those who are excommunicated,
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