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Heresy

theological_term theological_term standard

Heresy is teaching that departs from essential biblical truth and, if embraced, leads people away from the apostolic faith.

At a Glance

A grave departure from essential Christian doctrine; in the New Testament, related terms can also mean sect, party, or faction.

Key Points

Description

Heresy is a serious departure from the truth God has revealed in Scripture, especially when false teaching denies essential elements of the gospel or the person and work of Christ and so threatens the faith of the church. In the New Testament, terms translated with this idea can refer both to destructive false teaching and to sectarian divisions, which shows that heresy is not merely an honest mistake but error that misleads, divides, and resists apostolic truth. Christian theology has therefore used the word most carefully for teachings that contradict foundational biblical doctrine rather than for secondary disagreements among orthodox believers. A safe summary is that heresy involves persistent teaching or belief that opposes essential Christian truth and endangers the church’s faith and unity.

Biblical Context

The New Testament warns against false teachers, divisive factions, and teachings that distort the gospel. Related words can describe both doctrinal error and party spirit, so the biblical picture is broader than a modern dictionary definition alone.

Historical Context

In later Christian history, heresy came to mean formal denial of doctrines judged essential to the faith, especially concerning God, Christ, and salvation. Creeds and councils often used the term to mark off teachings outside orthodox boundaries.

Jewish and Ancient Context

Second Temple Jewish literature and practice often used sect or party language for competing groups and interpretations. That background helps explain the New Testament’s use of related terms, though Scripture remains the final authority for defining truth and error.

Primary Key Texts

Secondary Key Texts

Original Language Note

The main Greek term behind this idea is hairesis, originally meaning a choice and then a party, school, or sect. In the New Testament it can describe a faction or a destructive teaching movement, and in later Christian usage it came to mean false doctrine contrary to the apostolic faith.

Theological Significance

Heresy matters because the church is called to guard the gospel, test teaching, and preserve sound doctrine. False teaching can damage believers, confuse the church, and obscure the truth about God, Christ, salvation, and holiness.

Philosophical Explanation

At a basic level, heresy is a truth-claim that cannot be reconciled with revealed truth. In Christian thought, the issue is not personal sincerity but whether a teaching conforms to Scripture and the apostolic witness.

Interpretive Cautions

Do not label every doctrinal disagreement heresy. The term should be used carefully for serious departures from essential biblical truth, not for every minor difference among orthodox believers or for mere immaturity in understanding.

Major Views

Some Christians use heresy narrowly for formal denial of essentials; others use it more broadly for grave doctrinal error. A careful biblical usage reserves it for teachings that contradict foundational Christian truth and endanger the church.

Doctrinal Boundaries

Heresy is not the same as a secondary doctrinal disagreement, a denominational difference, or a sincere but immature interpretation. It involves a persistent and substantive denial of essential biblical truth, especially concerning the gospel and the person and work of Christ.

Practical Significance

Believers should test teaching by Scripture, avoid harmful division, and distinguish between essential truth and secondary matters. Churches must protect the flock from false doctrine while speaking with clarity, humility, and discipline.

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