DECALOGUE

Definition

The Decalogue refers to the Ten Commandments — the ten moral and religious precepts traditionally understood to have been given by God to Moses on Mount Sinai and recorded in the Hebrew scriptures. The term derives from the Greek for "ten words," a translation of the Hebrew name the Jewish tradition applied to these precepts. In legal contexts, the Decalogue appears not as a legal instrument in itself but as a reference point in discussions of natural law, the foundations of Western legal systems, and the relationship between religious and civil authority. The term surfaces in legal literature primarily in two ways: (1) as a historical and philosophical touchstone when tracing the moral underpinnings of prohibitions common to most legal systems — against murder, theft, perjury, and the like — and (2) in modern constitutional litigation concerning the display of Ten Commandments monuments or text in government spaces, where the Decalogue becomes a legal subject matter rather than merely a jurisprudential reference.

Common Language

Modern common usage (Wiktionary): An alternative form of "Decalogue," referring to the Ten Commandments as a religious and moral text. Historical common usage (Webster's 1913): "The Ten Commandments or precepts given by God to Moses on Mount Sinai, and originally written on two tables of stone." The common and legal uses are largely coextensive in meaning — both refer to the same text. The legal significance lies not in a divergence of definition but in context: in law, the Decalogue becomes the subject of constitutional analysis, natural law theory, and questions of church-state separation, giving a familiar religious term a technical legal dimension that common usage does not carry.

Why It Matters in Research

Researchers are most likely to encounter "Decalogue" in two distinct bodies of legal material that require different research strategies. In historical sources — treatises, commentaries, and early American legal writing — the Decalogue appears as part of natural law discourse. Blackstone, for instance, treats moral law rooted in divine command as a foundation underlying positive law. When historical dictionaries or treatises invoke the Decalogue, they are typically making a philosophical argument about the moral legitimacy of civil law, not citing an enforceable legal source. Read these references as jurisprudential framing, not legal authority. In modern sources, the Decalogue surfaces as a constitutional subject matter in Establishment Clause litigation. Government display of Ten Commandments text has generated significant First Amendment case law. Searching legal databases for "Decalogue" in this context will return cases and law review commentary largely absent from older research tools. The shift from the Decalogue as a jurisprudential reference point to the Decalogue as a constitutional flashpoint is a significant doctrinal evolution that spans the mid-to-late twentieth century and is easy to miss when relying solely on older dictionary sources. The Black's Law Dictionary entry for this term is notably garbled in at least one edition — the definition begins accurately but runs into text from an adjacent entry (a common artifact of early typesetting in reprinted legal dictionaries). Researchers should treat truncated or internally inconsistent entries in historical Black's editions with skepticism and cross-check against Bouvier's and other sources.

Historical Dictionary Support

All three source dictionaries converge on the same bare definition: the Decalogue is the Ten Commandments given by God to Moses. Bouvier's is the most concise, offering only that statement before moving to adjacent entries. Black's 2nd Edition adds the useful gloss that Jews called them the "Ten Words," which explains the Greek-derived name. The Black's Law Dictionary (1st edition) entry in the source material is corrupted — the definition of Decalogue is interrupted mid-sentence by text from an unrelated entry on a debt action (likely DEBT or DETINUE). This is an artifact of the original typesetting and should not be read as part of the Decalogue entry. It illustrates a real research hazard: early printed legal dictionaries, particularly in digitized or reprinted forms, sometimes carry over adjacent column text. None of the historical dictionaries engage with the Decalogue's role in natural law theory or anticipate its later constitutional significance. For those dimensions, researchers must look beyond dictionary sources to treatises, philosophical legal writing, and case law.

Jurisdictional Note

The constitutional dimension of the Decalogue is exclusively a matter of federal law in the United States, governed by the Establishment Clause of the First Amendment. State courts have addressed related questions under state constitutional provisions. The legal status of Decalogue displays in government settings varies depending on context, history, and judicial interpretation, and has been addressed by the U.S. Supreme Court in ways that do not yield a single bright-line rule.

Encyclopedia Cross-Reference

See: Natural Law; Establishment Clause; Church and State

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