📖 Biblical Definition
Conscience is the God-given internal faculty that bears witness to moral truth. Paul writes that even Gentiles "show that the work of the law is written on their hearts, while their conscience also bears witness" (Romans 2:15). The conscience is not autonomous or infallible — it must be informed by Scripture and can be seared through persistent sin (1 Timothy 4:2). A "good conscience" results from walking in obedience to God's Word (Acts 24:16). The conscience is not the final authority — Scripture is — but it is a God-given alarm system that no human authority may override. Luther's stand — "my conscience is captive to the Word of God" — is the biblical position.
📜 Webster 1828 Definition
Internal or self-knowledge; the faculty or power which decides on the lawfulness or unlawfulness of our actions and affections.
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CON'SCIENCE, n. [L. conscientia.] Internal or self-knowledge, or judgment of right and wrong. The faculty, power, or principle within us, which decides on the lawfulness or unlawfulness of our own actions and affections, and instantly approves or condemns them. Note: Webster understood conscience as a moral faculty given by God — not an autonomous authority but a witness to divine law.
📖 Key Scripture
• Romans 2:14-15 — "They show that the work of the law is written on their hearts, while their conscience also bears witness."
• 1 Timothy 4:2 — "Through the insincerity of liars whose consciences are seared."
• Acts 24:16 — "I always take pains to have a clear conscience toward both God and man."
• 1 Timothy 1:19 — "Holding faith and a good conscience."
• Romans 14:23 — "Whatever does not proceed from faith is sin."
⚠️ Modern Corruption
Conscience is elevated to autonomous authority or dismissed as culturally conditioned feeling.
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Modern culture corrupts conscience in two ways. Relativism dismisses conscience as a product of cultural conditioning — "that is just your conscience, shaped by your upbringing." This denies the universal moral law that God has written on every heart. The opposite error elevates personal conscience to supreme authority — "my conscience tells me this is right, therefore it is." But Scripture warns that the conscience can be seared, deceived, and misinformed. Conscience is a servant of God's law, not a replacement for it. A well-formed conscience agrees with Scripture; a seared conscience calls evil good and good evil.
Usage
• "Conscience is God's alarm system written on the heart — it must be calibrated by Scripture, not by culture."
• "A seared conscience calls evil good. A captive conscience submits to God's Word even when it is costly."
• "Luther was right: conscience bound to the Word of God cannot and must not be violated by any human authority."