Did the Atheist Know God and Reject Him — or Never Know Him at All?
Romans 1, Unbelief, and the Suppression of Truth
Christians have long debated an important question regarding unbelief:
Does the atheist genuinely know God exists and reject Him, or does the atheist truly lack knowledge of God altogether?
Different theological traditions answer this question somewhat differently. However, many Christians point to Romans 1 as teaching that humanity possesses a real awareness of God that is resisted or suppressed rather than entirely absent.
The Biblical Argument from Romans 1
Paul writes in Romans:
“That which may be known of God is manifest in them; for God hath shewed it unto them” (Rom. 1:19).
According to this passage, God has revealed Himself through:
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creation,
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conscience,
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moral awareness,
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and the visible order of the world.
Paul continues:
“The invisible things of him from the creation of the world are clearly seen” (Rom. 1:20).
From this perspective, unbelief is not merely lack of information. Rather, many theologians argue that fallen humanity suppresses truths about God that are already present in some form.[1]
External and Internal Revelation
Christian theology often distinguishes between:
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external revelation,
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and internal revelation.
External revelation refers to evidence for God found in:
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nature,
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order,
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beauty,
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design,
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morality,
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and existence itself.
Internal revelation refers to:
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conscience,
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moral awareness,
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guilt,
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longing for meaning,
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and the inward sense of accountability.
Romans 2 speaks of:
“the work of the law written in their hearts” (Rom. 2:15).
From this viewpoint, people possess some awareness of moral accountability before God even when they deny Him intellectually.
Is Unbelief Intellectual or Moral?
Many Christian thinkers argue that unbelief ultimately involves not merely intellectual confusion, but moral resistance.
The Bible’s use of the word “fool” often refers not to low intelligence, but to spiritual and moral rebellion:
“The fool hath said in his heart, There is no God” (Ps. 14:1).
In this understanding, the issue is not that atheists necessarily lack reasoning ability. Rather, Scripture suggests that human beings may misuse reasoning in order to avoid truths they do not wish to accept.[2]
Sin affects:
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desires,
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reasoning,
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perception,
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and moral judgment.
As a result, people may:
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reinterpret evidence,
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suppress conviction,
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rationalize behavior,
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or construct worldviews that preserve autonomy from God.
But Are Atheists Consciously Lying?
This question requires careful nuance.
Most atheists do not experience themselves as secretly believing in God while consciously pretending otherwise. Many are sincere, thoughtful, and genuinely convinced by their worldview.
Christian theology does not necessarily require that unbelievers possess constant conscious awareness of God in the same way believers do.
Rather, Romans 1 is often understood to mean that humanity possesses a suppressed or resisted awareness of God that becomes distorted through:
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sin,
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pride,
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rebellion,
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cultural influence,
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and hardened thinking.
In this sense, self-deception may operate gradually and deeply.
Practical Atheism
Scripture also describes forms of practical unbelief.
Some people may verbally acknowledge God while living as though:
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He does not judge,
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does not care,
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or does not intervene.
Others reject divine authority because belief in God would require:
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repentance,
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surrender,
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moral accountability,
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and submission to truth outside themselves.
From the Christian perspective, unbelief is therefore not merely theoretical, but relational and moral.
Different Christian Perspectives
Not all Christians frame this issue identically.
Some theological traditions emphasize:
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total depravity,
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suppression of truth,
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and moral rebellion.
Others place greater emphasis upon:
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intellectual uncertainty,
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existential struggle,
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or limitations of evidence.
Still, many agree that Scripture portrays unbelief as involving more than neutral intellectual investigation alone.
The Christian Response to Unbelief
Because unbelief involves both mind and heart, Christians are called to respond not merely with arguments, but with:
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humility,
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patience,
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compassion,
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prayer,
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and faithful witness.
The goal is not to caricature atheists as dishonest villains, but to recognize the complex spiritual, emotional, intellectual, and moral dimensions involved in human belief and unbelief.
Conclusion
According to Romans 1, many Christians believe that humanity possesses a genuine awareness of God through creation and conscience, yet suppresses or resists that truth because of sin and moral rebellion.
This does not necessarily mean atheists are consciously lying about their beliefs. Rather, Scripture presents unbelief as a complex condition involving:
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self-deception,
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distorted reasoning,
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moral autonomy,
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and resistance to divine authority.
The biblical claim is ultimately that humanity’s deepest problem is not lack of intelligence, but estrangement from God.
Sources
[1] Nathan Busenitz, “The Word of Truth in a World of Error: The Fundamentals of Practical Apologetics,” in Evangelism: How to Share the Gospel Faithfully, The John MacArthur Pastor’s Library (Nashville, TN; Dallas; Mexico; Rio de Janeiro: Thomas Nelson, 2011), 54–55.
[2] Joel R. Beeke and Paul M. Smalley, Reformed Systematic Theology: Revelation and God (Wheaton, IL: Crossway, 2019), 1:506–507.