✟ The Unity and Trinity of God ✟
The Existence of God
Revealed Truth (Defined Dogma)

God's existence is not merely an object of natural rational
knowledge, but also an object of supernatural faith.

Lay Catechist Notes
    Supernatural revelation (for example the dogmas presented in this site) confirms and extends the natural knowledge God has placed in every human's heart and enables the existence of God to be known easily by everyone with a high degree of certainty and without any errors. Man can know God by the observance of all that He has created, but can be more fully understood by the truths He has revealed through Sacred Scripture and Sacred Tradition.
Divine Revelation (Scriptural Proof)
  • 6But without faith it is impossible to please God. For he that cometh to God, must believe that he is, and is a rewarder to them that seek him. (Hebrews 11:6)
  • 25Whereof I am made a minister according to the dispensation of God, which is given me towards you, that I may fulfil the word of God: 26The mystery which hath been hidden from ages and generations, but now is manifested to his saints, 27To whom God would make known the riches of the glory of this mystery among the Gentiles, which is Christ, in you the hope of glory. (Colossians 1:25-27)
Catechism of the Catholic Church
  • 37 In the historical conditions in which he finds himself, however, man experiences many difficulties in coming to know God by the light of reason alone:
      Though human reason is, strictly speaking, truly capable by its own natural power and light of attaining to a true and certain knowledge of the one personal God, who watches over and controls the world by his providence, and of the natural law written in our hearts by the Creator; yet there are many obstacles which prevent reason from the effective and fruitful use of this inborn faculty. For the truths that concern the relations between God and man wholly transcend the visible order of things, and, if they are translated into human action and influence it, they call for self-surrender and abnegation. The human mind, in its turn, is hampered in the attaining of such truths, not only by the impact of the senses and the imagination, but also by disordered appetites which are the consequences of original sin. So it happens that men in such matters easily persuade themselves that what they would not like to be true is false or at least doubtful.
  • 38 This is why man stands in need of being enlightened by God's revelation, not only about those things that exceed his understanding, but also "about those religious and moral truths which of themselves are not beyond the grasp of human reason, so that even in the present condition of the human race, they can be known by all men with ease, with firm certainty and with no admixture of error".
Ecumenical Council Documents
  • 1st General Council of the Vatican (1869)
    • Session 2 - Profession of Faith
      • "I, Pius, bishop of the Catholic Church, with firm faith believe and profess each and every article contained in the profession of faith which the Holy Roman Church uses, namely: I believe in one God the Father almighty, maker of heaven and earth, of all things seen and unseen..."
    • Session 3 Chapter 3 - "On Faith"
      • "Since human beings are totally dependent on God as their creator and lord, and created reason is completely subject to uncreated truth, we are obliged to yield to God the revealer full submission of intellect and will by faith."
    • Canons 1 - On God the creator of all things
      • 1. "If anyone denies the one true God, creator and lord of things visible and invisible: let him be anathema."
Papal Encyclical Documents
  • Fides et Ratio (1998) - Faith and Reason - John Paul II
    • "What is distinctive in the biblical text is the conviction that there is a profound and indissoluble unity between the knowledge of reason and the knowledge of faith. The world and all that happens within it, including history and the fate of peoples, are realities to be observed, analysed and assessed with all the resources of reason, but without faith ever being foreign to the process. Faith intervenes not to abolish reason's autonomy nor to reduce its scope for action, but solely to bring the human being to understand that in these events it is the God of Israel who acts. Thusthe world and the events of history cannot be understood in depth without professing faith in the God who is at work in them. Faith sharpens the inner eye, opening the mind to discover in the flux of events the workings of Providence. Here the words of the Book of Proverbs are pertinent: “The human mind plans the way, but the Lord directs the steps” (16:9). This is to say that with the light of reason human beings can know which path to take, but they can follow that path to its end, quickly and unhindered, only if with a rightly tuned spirit they search for it within the horizon of faith. Therefore, reason and faith cannot be separated without diminishing the capacity of men and women to know themselves, the world and God in an appropriate way.
Fathers and Doctors of the Church Documents
  • Summa Theologica - The One God (1265) - The Highest Study of God - Thomas Aquinas
    • "Whether It Can Be Demonstrated That God Exists?"
      • Reply to Objection 3: "From effects not proportionate to the cause no perfect knowledge of that cause can be obtained. Yet from every effect the existence of the cause can be clearly demonstrated, and so we can demonstrate the existence of God from His effects; though from them we cannot perfectly know God as He is in His essence."
    • "Whether Those Who See the Essence of God Comprehend Him?"
      • "But God, whose being is infinite . . is infinitely knowable. Now no created intellect can know God infinitely. For the created intellect knows the Divine essence more or less perfectly in proportion as it receives a greater or lesser light of glory. Since therefore the created light of glory received into any created intellect cannot be infinite, it is clearly impossible for any created intellect to know God in an infinite degree. Hence it is impossible that it should comprehend God."