Existence as Necessity

Existence as Necessity: The Ontological Argument Through the Ages

Book details:

342 pages

ISBN:  979-8270634636
Release date: October 2025

Description

Why does anything exist at all—and must God exist by definition? Existence as Necessity offers a profound exploration of the Ontological Argument, the bold claim that the very concept of God implies His existence. Spanning thinkers from Anselm and Descartes to Leibniz, Plantinga, and Gödel, this book traces how reason, logic, and faith converge in one of philosophy’s most enduring questions. Blending history, theology, and analytic philosophy, it invites readers to rediscover the timeless dialogue between mind and being, necessity and divinity.

Preface
Introduction
Chapter 1: Two Voices, One Mission — Theologians and Apologists in the Christian Defense of God
Theologian Approach
Audience
Types of Arguments
Chapter 2: Reason and Revelation: The Apologist’s Case for God
Methodology

Philosophical and Empirical Arguments
Empirical Arguments
Audience
Types of Arguments
Philosophical Arguments vs. Theological Arguments
Chapter 3: Defending the Faith: Apologist Strategies for Proving God’s Existence
How Christian Apologists Formulate Arguments: Structuring Premises
Classical Arguments for the Existence of God
Chapter 4: The Ontological Argument: History and Impact
Anselm’s Ontological Argument
Chapter 5: Descartes and Leibniz on the Ontological Argument: Foundations, Critiques, and Modern Relevance
Descartes’ Ontological Argument
Leibniz’s Ontological Argument
Chapter 6: Modal Ontological Arguments for the Existence of God: Plantinga, Gödel, and Hartshorne
Plantinga’s Modal Ontological Argument
Gödel’s Ontological Argument
Hartshorne’s Ontological Argument
Chapter 7: The Modal Ontological Arguments: Perfection, Necessity, and Logical Coherence
Modal Perfection Argument
Modal Ontological Argument by Robert Maydole
Malcolm’s Ontological Argument
Chapter 8: The Ascent Toward Perfection: Discovering God Through Degrees of Goodness
Argument from Degrees of Perfection
Argument from the Impossibility of God’s Non-Existence
Argument from Conceptual Necessity
Chapter 9: Necessary Reality and the Logic of Worlds
Argument from the Nature of Possible Worlds
Argument from the Essence of Existence
Argument from Transcendental Necessity
Chapter 10: Intellect, Intuition, and the Ground of Perfection
Argument from Rational Intuition
Argument from Metaphysical Perfection
Cited or Recommended Literature

Selected Reflections:
“Faith seeking understanding.”
— St. Anselm (fides quaerens intellectum)

“I clearly and distinctly perceive that necessary existence is contained in the idea of God.”
— René Descartes

“If it exists in some possible world, it exists in all possible worlds — including the actual world.”
— Gottfried Wilhelm Leibniz

“The universe’s existence is contingent and therefore demands explanation.”
— Richard Swinburne

“The Bible is alive, it speaks to me; it has feet, it runs after me; it has hands, it lays hold of me.”
— Martin Luther, Preface to the New Testament

“Scripture is not simply a repository of true statements about God, but the vehicle through which God continues to speak today.”
— N. T. Wright

“Revelation does not terminate in the Bible but continues through its proper understanding and application.”
— J. I. Packer, God Has Spoken

“The Bible is not a collection of disconnected moral lessons, but a unified revelation of God’s redemptive plan.”
— R. C. Sproul, Knowing Scripture

“This most beautiful system of the sun, planets, and comets could only proceed from the counsel and dominion of an intelligent and powerful Being.”
— Isaac Newton, Principia Mathematica

“The most incomprehensible thing about the universe is that it is comprehensible.”
— Albert Einstein

“The result of intelligent design is a purposeful arrangement of parts.”
— Michael Behe, Darwin’s Black Box

“From the first whispers of faith to the discoveries of modern science, these voices echo a single truth: that the universe is not silent, and that understanding begins in wonder.”

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