what does the bible say?
Natural theology attempts to understand God from creation and human reason alone. However, the Bible explains why this approach is limited and ultimately unreliable. Creation truly reveals that God exists and displays His power and majesty (Psalm 19:1–3, Psalm 104; Job 38–39; Romans 1:19–20), yet the human mind is incapable of rightly interpreting that revelation because of sin. Sin corrupts every part of us, including the mind (Genesis 6:5, 8:21; Romans 1:21, 28; 2 Corinthians 4:4). Known as the “noetic effect” of the fall, this means that human reasoning apart from God’s Word cannot arrive at a proper understanding of God.
Nature does not reveal the way of salvation. What is visible in creation is God’s existence, some of His attributes, and His wrath against sin, but only Scripture explains how sinners can be rescued from that wrath through Christ’s death and resurrection (Isaiah 53:4–6; Romans 10:13–17). Additionally, many truths revealed in Scripture are supernatural and cannot be discovered through observation or deduction.
Relying on reason apart from Scripture is dangerous, as human wisdom cannot reason its way to a proper knowledge of God (1 Corinthians 1:21). Indeed, because everyone’s heart is deceitful (Jeremiah 17:9), human reason will tend toward conclusions that affirm sin and a more accepting god (Proverbs 14:12).