Introduction: The Rise of Atheistic Relativism

Atheistic relativism is one of the dominant philosophical ideologies in Western secular culture today. It asserts that there are no objective moral values, no universal truth, and no binding standards for human behavior, thought, or belief. According to this view, all truth is relative—determined by culture, personal preference, or situational factors—and no overarching, unchanging standard exists. This ideology forms the basis of many challenges leveled against Christianity, especially regarding Scripture’s claim to divine, inerrant truth and objective moral standards.

This article will offer robust Christian apologetic responses to atheistic relativism, grounding the argument in Scripture and logic. The historical-grammatical method of biblical interpretation will be employed, and all responses will align with a literal biblical chronology and a high view of Scripture’s authority.

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The Self-Defeating Nature of Relativism

The most immediate and devastating critique of atheistic relativism is its self-defeating nature. To claim “all truth is relative” is to make an absolute truth claim. If relativism is absolutely true, then not all truth is relative. If not all truth is relative, then relativism fails on its own terms.

This logical inconsistency exposes relativism as an internally contradictory worldview. When someone asserts that there are no objective truths, they are making a universal statement that they expect to apply objectively. Thus, relativism refutes itself.

Jesus Christ, by contrast, made definitive, objective claims about truth. He stated plainly: “I am the way and the truth and the life. No one comes to the Father except through Me” (John 14:6). The claim is not subjective, situational, or culturally contingent. It is universal and absolute.

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The Biblical View of Truth

Scripture repeatedly affirms that truth is objective and rooted in the very nature of God. As Jesus prayed to the Father, He said, “Sanctify them by the truth; Your word is truth” (John 17:17). This means that God’s Word is not merely a truth, but the truth. The Greek term used, alētheia, denotes reality as it actually is, not as it is perceived or interpreted through subjective experience.

The foundation of all biblical teaching rests upon the objective nature of divine revelation. In the Psalms, we read: “The sum of Your word is truth, and every one of Your righteous rules endures forever” (Psalm 119:160). Truth is not fluid or changing; it is enduring and firmly established by Jehovah Himself.

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Atheistic Relativism and Morality

One of the most pressing consequences of atheistic relativism is its effect on morality. If moral standards are relative, then moral judgments become arbitrary. There can be no such thing as “right” or “wrong” in any objective sense. Actions like murder, theft, or abuse cannot be universally condemned, because in a relativistic worldview, moral values are determined by cultural consensus or personal opinion.

The Bible, however, declares that moral law is objective and grounded in the character of God. For instance, “You shall not murder” (Exodus 20:13) is not merely a cultural or societal norm, but a command from the Creator who imbued human life with value by making man in His image (Genesis 1:26-27). This standard applies across all times and cultures.

Romans 2:14-15 explains that even Gentiles, who do not have the Law, “do what the Law requires” because the work of the Law is “written on their hearts.” This affirms the reality of objective moral knowledge, embedded within humanity by God Himself.

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The Problem of Evil Refutes Relativism

Atheists often argue against God’s existence by appealing to the problem of evil. Yet this argument assumes the existence of a moral standard by which something can be called evil. But if relativism is true and there are no objective moral standards, then the category of “evil” becomes meaningless.

C.S. Lewis, before becoming a Christian, realized this inconsistency. He wrote, “My argument against God was that the universe seemed so cruel and unjust. But how had I got this idea of just and unjust? A man does not call a line crooked unless he has some idea of a straight line.”

Atheistic relativism undercuts its own arguments by assuming what it denies—objective moral standards. Biblical Christianity alone provides a coherent moral framework where evil can be meaningfully condemned because there is a fixed, absolute standard grounded in the holiness of God (1 Peter 1:16).

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The Inconsistency of Moral Relativists

While many atheists claim to believe in moral relativism, they do not live consistently with that worldview. They still appeal to justice, fairness, and human rights. They oppose racism, sexual abuse, and genocide. However, in a relativistic system, there is no transcendent moral law that makes these things objectively wrong.

Atheistic relativists must borrow from the Christian worldview in order to make sense of morality. Only biblical theism explains the existence of objective moral values and duties. These are not mere social constructs but reflections of the immutable nature of God.

In Deuteronomy 32:4, Moses declared: “The Rock—His work is perfect, for all His ways are justice. A God of faithfulness and without iniquity, just and upright is He.” Moral objectivity flows from God’s own righteous nature.

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Human Dignity and the Image of God

One of the most dangerous implications of atheistic relativism is its erosion of human dignity. If humans are merely the product of unguided evolutionary processes, with no transcendent origin or destiny, then there is no rational basis for affirming the inherent worth of every individual. Concepts such as equality and rights become philosophical preferences, not moral necessities.

The Bible provides the only foundation for unalienable human dignity: “So God created man in His own image, in the image of God He created him; male and female He created them” (Genesis 1:27). Being made in the image of God (imago Dei) gives each person intrinsic worth and moral responsibility. This cannot be derived from materialistic, atheistic presuppositions.

Without this foundation, relativistic societies are prone to dehumanization. History bears this out in regimes that adopted atheistic ideologies: Stalin’s Soviet Union, Mao’s China, Pol Pot’s Cambodia—each embracing moral relativism and resulting in mass atrocities.

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Relativism and Epistemological Nihilism

Atheistic relativism eventually collapses into epistemological nihilism—the idea that knowledge itself is impossible. If truth is relative, then knowledge of truth is also relative, and certainty about anything becomes impossible. This is not merely a philosophical abstraction; it undermines the very basis of science, reason, and law.

Christian theism affirms that human beings, though finite and fallen, can possess knowledge. Proverbs 1:7 declares, “The fear of Jehovah is the beginning of knowledge.” True knowledge begins with recognizing God as the ultimate source of truth and revelation.

Romans 1:18-21 explains that God has made His truth evident through creation, but those who suppress it become “futile in their thinking.” Atheistic relativism, as a suppression of truth, results in irrationality and intellectual futility.

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Objective Truth and the Incarnation

The coming of Jesus Christ was the definitive revelation of absolute truth in history. As John 1:14 says, “The Word became flesh and dwelt among us… full of grace and truth.” Jesus embodied truth because He was and is the eternal Logos—God’s ultimate communication to humanity.

Unlike the speculative philosophies of men, Christ’s teachings were anchored in divine authority. He didn’t speak like the scribes or philosophers but as One who had authority (Matthew 7:29). He declared objective realities about God, man, sin, salvation, and judgment. These truths are not subject to cultural revision or personal reinterpretation.

Hebrews 13:8 confirms: “Jesus Christ is the same yesterday and today and forever.” Truth does not evolve. What He taught in 29–33 C.E. remains binding today.

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Relativism’s Ethical Collapse

When relativism becomes the dominant worldview, societies deteriorate morally. Isaiah 5:20 warns, “Woe to those who call evil good and good evil.” This reversal of moral categories is the inevitable outcome of rejecting objective moral law. The more a society embraces relativism, the more it disintegrates into lawlessness and chaos.

In Judges 21:25, the statement is made: “In those days there was no king in Israel. Everyone did what was right in his own eyes.” This summarizes the moral and spiritual anarchy that results when God’s absolute standards are rejected.

Atheistic relativism leads modern culture down the same path, where moral boundaries are erased, and subjective feelings replace divine authority.

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Conclusion: The Necessity of Absolute Truth in Christianity

Christian apologetics must stand firm against atheistic relativism by affirming the inerrancy and authority of Scripture, the objectivity of moral law, and the coherence of the Christian worldview. Christianity is not a subjective religious preference but a rational, evidence-based belief system rooted in divine revelation and historical reality.

Believers are called to defend the truth “with gentleness and respect” (1 Peter 3:15), but also with unwavering conviction. The truth of God’s Word, not the shifting opinions of man, must be our foundation.

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