747. Excellence of the Virtue of Faith.—(a) Faith is the beginning of the supernatural life, the foundation and the root of justification, without which it is impossible to please God and arrive at fellowship with Him. (b) It is an anticipation of the end of the supernatural life, for by faith we believe that which we shall behold in the beatific vision: “All these died according to faith, not having received the promises, but beholding them afar off, and saluting them and confessing that they are pilgrims and strangers on the earth” (Heb., xi. 13).
748. Utility of Faith for the Individual.—(a) Through faith the intellect receives a new light, which discloses to it a higher world—“the wisdom of God in a mystery” (I Cor., ii. 7)—and which illuminates even this lower world with a heavenly brightness, that man may know more quickly, more surely, and more perfectly the natural truths that pertain to God and duty. (b) The will is strengthened to perform duties valiantly through the motives and examples which faith offers: the patriarchs of old “by faith conquered kingdoms, wrought justice, obtained promises, recovered strength from weakness” (Heb., xi. 33). In adversity faith is a stay and a consolation: “For what things soever were written, were written for our learning, that through patience and the comfort of the scriptures, we might have hope” (Rom., xv. 4).
749. Utility of Faith for Society.—(a) Domestic society is defended in its security and happiness by faith, which teaches the sacramental character of marriage, which offers the model of the Holy Family to Christian homes, which never ceases to declare in the name of God the duties of husbands and wives, parents and children. (b) Without faith and religion civil society cannot be maintained in strength and prosperity. It is faith in God more than laws or armies that gives security to life, reputation, and property, with order and peace at home and abroad.
750. The Meaning of Faith.—In Holy Scripture and other religious writings the word _faith_ has various meanings.
(a) Sometimes it stands for a promise, or for the quality of being true to one’s promises. Examples: St. Paul condemns widows who remarry against their word, “because they have made void their first faith (promise)” (I Tim., v. 12). Speaking of the unbelief of the Jews, he says: “Shall their unbelief make the faith (i.e., fidelity to promise or faithfulness) of God without effect? God forbid. But God is true” (Rom, iii. 3, 4).
(b) Sometimes the term _faith_ stands for good reputation, or for confidence in another. Examples: “He that discloseth the secret of a friend loseth his faith (credit, reputation), and shall never find a friend to his mind” (Ecclus., xxvii. 17); “O thou of little faith (trust, confidence), why didst thou doubt?” (Matt., xiv. 31).
(c) Sometimes _faith_ stands for truths or doctrines offered for one’s belief, or for the assent of the mind to the judgment of conscience or to the revelation of God. Examples: “Thou has not denied My faith” (that is, “the truths revealed by Me,” Apoc. ii. 13); “All that is not of faith (i.e., from the firm conviction of conscience) is sin” (Rom, xiv. 23); “Without faith (i.e., assent to the unseen on the word of God) it is impossible to please God; for he that cometh to God must believe” (Heb., xi. 6).
751. It is faith only in the last sense that is known as the theological virtue of faith, and hence with it alone we are here concerned. St. Paul describes this faith as follows: “Faith is the substance of things to be hoped for, the evidence of things that appear not” (Heb., xi. 1). This verse is variously interpreted. (a) According to St. Chrysostom, the meaning is: Faith is the subsistence or anticipated existence in the soul of future blessings that are hoped for, through the firm confidence it gives; it is the conviction of the reality of the unseen. (b) According to St. Thomas, the meaning is: Faith is the substance or basis on which is built the hope of blessedness, or on which rests as on its foundation the whole work of justification; it is an argument producing certainty of that which is not seen. The elements of St. Thomas’ interpretation have been incorporated into the Vatican Council’s definition: “The Catholic Church professes that this faith which is the beginning of human salvation is a supernatural virtue by which we, with the aid and inspiration of the grace of God, believe that the things revealed by Him are true, not because the intrinsic truth of these things has been perceived by the natural light of reason, but because of the authority of God Himself revealing, who can neither deceive nor be deceived” (Sess. 3, chap. 3, Denz. 1789).
752. Thus, faith is an intellectual habit and act, but it differs from all other intellectual habits and acts as follows: (a) it differs from science, vision, understanding, for its object is “the things that appear not”; (b) it differs from opinion, doubt, suspicion, for it is a firm “substance,” a certain “evidence”; (c) it differs from human faith or belief resting on man’s word and promises, for it is the pledge, beginning and cornerstone of the happiness promised by God Himself.
753. Faith will now be considered according to two aspects: (a) objectively, as regards the things that are believed by him who has faith; (b) subjectively, as regards the habit and act of the believer which put him in contact with these truths of the unseen world.