📖 Biblical Definition
Natural theology concerns what can be known about God from creation and conscience alone. Scripture affirms that God has revealed Himself through the natural order: "The heavens declare the glory of God, and the sky above proclaims his handiwork" (Psalm 19:1). Paul teaches that God's "invisible attributes, namely, his eternal power and divine nature, have been clearly perceived, ever since the creation of the world, in the things that have been made. So they are without excuse" (Romans 1:19-20). This general revelation is sufficient to leave all men without excuse but insufficient to save — it reveals God's existence, power, and moral demands, but not the gospel of Christ. The Reformed position holds that natural revelation is real and authoritative (God truly is revealed in creation), but that fallen man suppresses this knowledge in unrighteousness (Romans 1:18). Therefore, natural theology apart from Scripture and the regenerating work of the Spirit produces not true knowledge of God but idolatry — man fashions gods in his own image from the raw materials of creation.
📜 Webster 1828 Definition
No compound entry; see "Theology" and "Natural."
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Webster 1828 defines THEOLOGY as "divinity; the science of God and divine things; or the science which teaches the existence, character and attributes of God, His laws and government, the doctrines we are to believe and the duties we are to practice." He categorizes theology as either natural (learned from creation and reason) or revealed (learned from Scripture). This reflects the classical Protestant distinction that natural theology is real but limited — it reveals God's existence but not His saving purpose in Christ.
📖 Key Scripture
• Romans 1:18-20 — "For his invisible attributes, namely, his eternal power and divine nature, have been clearly perceived, ever since the creation of the world, in the things that have been made. So they are without excuse."
• Psalm 19:1-4 — "The heavens declare the glory of God, and the sky above proclaims His handiwork."
• Romans 2:14-15 — "They show that the work of the law is written on their hearts, while their conscience also bears witness."
• Acts 14:17 — "Yet he did not leave himself without witness, for he did good by giving you rains from heaven and fruitful seasons."
• Acts 17:24-28 — "The God who made the world and everything in it... He Himself gives to all mankind life and breath and everything."
⚠️ Modern Corruption
Elevated to an independent source of saving knowledge or dismissed entirely as useless.
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Natural theology is corrupted in two directions. Roman Catholicism and classical liberalism inflate it into an independent, autonomous path to God — Aquinas's "Five Ways" become proofs that allegedly establish God's existence on purely rational grounds, apart from faith. This produces a "god of the philosophers" — an abstract, impersonal first cause — rather than the living God of Abraham, Isaac, and Jacob. On the other extreme, Barthians and presuppositionalists sometimes deny natural theology altogether, arguing that fallen man can perceive nothing true about God from creation. But Paul in Romans 1 is clear: general revelation is real, it is clearly perceived, and it renders all men culpable. The Reformed balance recognizes that natural theology provides genuine knowledge of God sufficient for condemnation but not for salvation. Creation reveals that God exists, that He is powerful, and that man is accountable; but only Scripture reveals who God is, what He has done in Christ, and how sinners can be reconciled to Him. Natural theology is not a ladder to heaven; it is the evidence that leaves man without excuse for rejecting the God he knows.
Usage
• "Natural theology confirms that every human being knows God exists — not because they have read the Bible, but because creation itself is an unceasing sermon they cannot escape."
• "The purpose of general revelation is not to provide a path to salvation but to remove every excuse for unbelief — Romans 1 makes this explicit."
• "Natural theology tells us that God is; only revealed theology tells us who God is and what He has done to save sinners."