Why We Can’t Always Trust Our Own Thinking
Have you ever wondered why people can look at the same truth and come to completely different conclusions? Why someone can read God’s Word and still reject what it plainly says? Scripture gives us the answer through what theologians call the doctrine of the noetic effects of sin.
The doctrine of the noetic effects of sin refers to the impact of sin on the human mind, such that our thinking, reasoning, and perception of truth are corrupted and distorted, especially in relation to God. In practical terms, this means sin affects how people think and understand reality.
Before sin entered the world, people could think clearly regarding God and His truth. However, after the Fall, the human mind became clouded. We can still think, reason, and discover, but not perfectly (Ephesians 4:18). Imagine trying to see through a dirty window. Some light comes through, but the view is blurry. That is a helpful picture of what sin has done to the human mind.
Sin twists us. It doesn’t just affect what we do, but what we want to believe. John Frame states that the mind is ethically corrupted, not just intellectually limited (2013). There are so many people who want to ignore or explain away the truths that God has made readily available. Instead of submitting to His truth, they suppress it (Romans 1:18–21).
This has important implications when we think about counseling and the way our culture understands people.
When it comes to secular psychology, psychologists are often very good at observing patterns and behaviors through empirical methods. They can identify correlations between thoughts, emotions, and actions, all possible through God’s common grace. However, secular psychology doesn’t grasp the ultimate truth of sin. It excludes sin altogether, along with guilt and the spiritual dimension of humanity, reducing everything to biological mechanisms, social constructs, or the product of one’s environment.
More importantly, secular psychology doesn’t address the corrupted heart as the root cause of brokenness (Jeremiah 17:9; Matthew 15:18–19).
Secular psychology also moralizes categories that are shaped by cultural consensus rather than divine revelation. Behaviors that Scripture calls sinful, many secular approaches reinterpret or minimize, while genuine Christlike virtues may be dismissed.
Because the mind is affected by sin, it is not neutral but actively suppresses the truth of God, making divine revelation necessary for true understanding. As Cornelius Van Til (2008) argues, human reasoning is never neutral but is either in submission to God or in rebellion against Him. This aligns with Scripture’s teaching that the unbelieving mind is darkened (Ephesians 4:18) and hostile toward God (Romans 8:7).
While the doctrine of the noetic effects of sin highlights the limitations of relying solely on a secular psychologist, there is hope when a counselee receives biblical counseling. We are a fallen people, sinful and wretched, but God has not left us without truth. He has given us His Word.
Therefore, biblical counseling depends on Scripture to correct the distorted thinking caused by sin and to lead individuals into truth and transformation.
The good news of the gospel is not simply that God changes our behavior. He transforms our minds through His truth. As believers, our hope is not found in trusting our own understanding but in submitting ourselves to the wisdom and authority of God’s Word, allowing Him to renew the way we think so that our lives increasingly reflect Christ.
References Used
Frame, J. M. (2013). Systematic Theology: An Introduction to Christian Belief. P & R Publishing Company.
Van Til, C. (2008). The Defense of the Faith (4th Ed.). P & R Publishing.
