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 accuse God of lying or of ignorance. An act of divine faith, then, is an act by which we believe whatever God has revealed on the authority of God himself. God has taken care that we should know for certain what he has revealed in times past for man's benefit and guidance by founding the Catholic Church. The Catholic Church is the pillar and the ground of truth, whose chief function it is to bear witness to God's revelation, and to teach it to all men even to the consummation of the world. God's Holy Spirit, the Spirit of Truth, ever abides with the Church, to enable her faithfully and infallibly to perform her task. Faith, then, considered as a habit, is a theological virtue by which we believe all that God has revealed and the Church proposes to our belief on the authority of God himself. An act of faith is an act of this virtue.

2. God has destined us for a supernatural end of eternal happiness, consisting essentially of the beatific vision of himself, as we know from revelation; he wishes that we should, as rational and free beings, work consciously for the attainment of that end. We cannot do this without believing in God and without believing that he is a rewarder of those who do well and a punisher of those who do ill; faith, then, is the necessary foundation of the Christian life. " Without faith it is impossible to please God. For he that cometh to God must believe that he is, and is a rewarder of them that seek him."

Faith is, then, necessary for salvation, not merely because it is of precept like the Commandments, but because it is a necessary means to attain the supernatural end to which we are destined by God. Without taking the necessary means the end cannot be attained. Those, then, who have come to the use of reason, so that they can know God and know what he has revealed, are bound to make an act of faith; otherwise they cannot be saved. The habit of faith is infused into the soul together with sanctifying grace at the reception of baptism, and this habitual faith is sufficient for such as have not the use of reason, like children or those who have always been insane.

3. Our act of faith must implicitly extend to everything that God has revealed; we cannot accept some articles on his authority and reject others which are vouched for by the same authority. But it is not sufficient to make an act of implicit faith comprising all that God has revealed. We are bound to know and believe certain revealed truths explicitly. Some of these truths must be believed explicitly as a necessary