What is the difference between classical theism and theistic personalism, and does contemporary criticism affect one more than the other?

In contemporary philosophical discussion about the nature of God, an important distinction has emerged between two major intellectual currents: Classical Theism and Theistic Personalism. This distinction is not merely an academic dispute, but has profound implications for how we understand God and his relationship to the world, and for the strength of responses to contemporary criticisms.

Inadequate Responses to Avoid

From some believers:

"The dispute between classical theism and personalism is merely philosophical debate that doesn't touch the essence of faith." This is misleading oversimplification. The dispute touches fundamental questions: Is God affected by our actions? Does he have temporal emotions? Does he interact with the world in ways that involve change in his essence? These are questions that directly affect worship, prayer, and religious understanding.

"Both conceptions are correct, what matters is faith in God." This is a logical contradiction. The two conceptions present contradictory views on fundamental points. Saying that God is absolutely simple (classical theism) contradicts saying that he has multiple changing mental states (personalism). Both cannot be correct.

From some critics:

"Classical theism makes God an abstract philosophical concept unrelated to the God of religions." This is a superficial accusation. Classical theism was the prevailing position among the greatest Muslim thinkers (Ibn Sīnā, al-Ghazālī, Ibn Rushd), Christian thinkers (Augustine, Aquinas), and Jewish thinkers (Maimonides). These did not see a contradiction between classical theism and personal worship.

"Theistic personalism is merely naive anthropomorphism." This is hasty dismissal. Contemporary personalists (Swinburne, Plantinga, Craig) offer sophisticated philosophical arguments for their position, not mere simple comparison of God to humans.

Why These Responses Are Inadequate

They fail to understand the depth of the philosophical dispute and its implications. Serious evaluation requires understanding each position in its internal coherence, then evaluating strengths and weaknesses.

Classical Theism: Basic Principles

Classical Theism — as formulated by Aristotle and developed by Ibn Sīnā and Aquinas — is based on specific principles:

1. Divine Simplicity: God is not composed of parts. His essence, attributes, will, and knowledge are all one. There is no real distinction between "God" and "God's wisdom" — God is his wisdom.

2. Timelessness: God is completely outside time. There is no "before" and "after" in the divine essence. Everything is present before God in the "eternal now."

3. Impassibility: God is not affected by what happens in the world. He does not "grieve" or "rejoice" in a literal sense, because this would involve change in his essence.

4. Pure Act: God is pure act without potency. There are no unrealized potentials in God. He is absolute realized perfection.

Theistic Personalism: Opposing Principles

Theistic Personalism — which emerged especially in the twentieth century — challenges these principles:

1. God as Real Person: God has the properties of personhood: consciousness, will, emotions, ability to respond. These are not metaphors, but realities.

2. Divine Temporality: God experiences time in some way. He knows events when they happen, responds to prayers when they are offered, interacts with history.

3. Divine Passibility: God is really affected by what happens in the world. He rejoices in good and grieves over evil. These are real emotions, not metaphorical ones.

4. Limited Composition: God may be composite to some degree — he has distinguishable attributes, different mental states, changing relationships with creation.

Strengths and Weaknesses

Classical Theism:

Strength: It preserves absolute divine transcendence. God is radically different from everything created. This protects him from "God of the gaps" criticisms — God is not merely a bigger being within the universe.

Weakness: Difficulty reconciling with religious language. How do we understand "God's anger" or "God's love" if God is impassible? How do we understand prayer if God does not change?

Theistic Personalism:

Strength: It harmonizes naturally with religious language and religious experience. The God we pray to is a real person who hears and responds.

Weakness: It makes God appear to be a being within the universe, albeit the greatest. This opens the door to criticisms: Why doesn't God intervene more clearly? How can he be perfect if he changes?

Contemporary Criticisms and Which Conception They Affect

"Death of God" Criticism (Nietzsche and beyond):

Affects personalism more. A personalist God who intervenes in history should have obvious effects. The absence of clear intervention poses a problem. Classical theism is less vulnerable to this criticism because it doesn't expect intervention in the manner of a human agent.

Problem of Evil:

Affects personalism more strongly. A personalist God who is loving and powerful would be expected to prevent horrific evils. Classical theism has stronger resources: evil is privation, and God permits it for eternal wisdom that transcends temporal understanding.

Conceptual Coherence Criticism:

Affects classical theism more. The concept of "divine simplicity" seems contradictory: How can God be knowing, powerful, and merciful if all these attributes are one? Personalism is clearer conceptually.

"God of the Gaps" Criticism:

Affects personalism exclusively. A personalist God appears to be an explanation for what we don't understand in nature. As science advances, the need for him diminishes. Classical theism is immune: God is not an explanation for natural phenomena, but the foundation of existence itself.

Contemporary Attempts at Reconciliation

Some contemporary philosophers attempt a middle position:

Brian Davies defends classical theism but emphasizes that it doesn't negate personal relationship with God — the issue is understanding the meaning of "personality" more deeply.

Eleonore Stump develops "modified classical theism" — God is simple and timeless, but has "real relations" with creation through a technical concept of divine presence.

William Lane Craig began as an explicit personalist, but has moved toward a position that integrates elements from classical theism, especially regarding simplicity.

Philosophical Assessment

Both positions face challenges, but in different ways:

Classical theism is philosophically stronger in facing contemporary criticisms of religion, but more difficult to reconcile with direct religious experience.

Theistic personalism is closer to natural religious intuition, but weaker in facing contemporary philosophical challenges.

Where We Stand in This Debate Today

The debate is alive and ongoing. There is no philosophical consensus, but trends can be observed:

In analytic philosophy of religion: Personalism was dominant in the second half of the twentieth century, but there is a strong return to classical theism in the last two decades.

In continental philosophy: Post-Heidegger, there is renewed interest in classical theism as an alternative to "metaphysics of presence" — God as "beyond being" in neo-Platonism.

In contemporary Islamic theology: Tension between return to classicism (Ashʿarī and Māturīdī) and influence of personalism through dialogue with Western philosophy.

The position consistent with "rational preponderance" (rajḥān ʿaqlī): Acknowledging that both conceptions attempt to grasp real aspects of divinity, and that the tension between them may reflect the limitation of human understanding before the divine infinite. At the same time, classical theism appears stronger in facing contemporary philosophical criticisms, while needing serious theological work to clarify its relationship to religious experience.

For Advanced Reading

─ Advanced level: Divine simplicity in Ibn Sīnā and Aquinas — comparative analysis
─ Advanced level: Critique of onto-theology in Heidegger and its relationship to classical theism
─ Brian Davies, An Introduction to the Philosophy of Religion (Oxford, 2004)
─ Edward Feser, "Classical Theism" (Internet Encyclopedia of Philosophy)
─ Richard