diff --git a/.claude/skills/religion-council/references/presentation.json b/.claude/skills/religion-council/references/presentation.json
index 1e2d51a..4be750e 100644
--- a/.claude/skills/religion-council/references/presentation.json
+++ b/.claude/skills/religion-council/references/presentation.json
@@ -131,7 +131,7 @@
       "provenance": {
         "translator": "和合本 (Chinese Union Version)",
         "year": "1919",
-        "source_language": "el, he",
+        "source_language": "grc",
         "basis": "public-domain-by-publication-date",
         "review": "not-independently-audited"
       },
@@ -147,7 +147,7 @@
       "provenance": {
         "translator": "和合本 (Chinese Union Version)",
         "year": "1919",
-        "source_language": "el, he",
+        "source_language": "grc",
         "basis": "public-domain-by-publication-date",
         "review": "not-independently-audited"
       },
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 62be295..4594b78 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -90,6 +90,14 @@ The format is adapted from [Keep a Changelog](https://keepachangelog.com/); vers
   `interpretation_only` cue (see the entry above), not a quotable 馬堅 excerpt, and it stays free of
   report-counted metadata. Both `presentation.json` copies stay byte-identical.
 
+### Fixed
+- **Christianity provenance `source_language` corrected to `grc` (Koine Greek).** The two 和合本 NT
+  records (`約翰福音 1:1`, `希伯來書 11:1`) carried `"el, he"` — the modern-Greek ISO code plus a
+  whole-edition Hebrew leak (an NT excerpt's source is not Hebrew). Cross-model review finding
+  (pre-existing, introduced with the records in v0.8.0-era curation). Metadata only: `provenance`
+  content is not report-counted, so rankings/counts/reports are unchanged; the curation test now
+  pins `grc` per record. Both `presentation.json` copies stay byte-identical.
+
 ### Changed
 - Deferred follow-up: rename the older controller `renderer-bypass` boundary reason to
   `verification-artifact-missing`. The reason-code string may be a public contract, so this needs a
diff --git a/skills/religion-council/references/presentation.json b/skills/religion-council/references/presentation.json
index 1e2d51a..4be750e 100644
--- a/skills/religion-council/references/presentation.json
+++ b/skills/religion-council/references/presentation.json
@@ -131,7 +131,7 @@
       "provenance": {
         "translator": "和合本 (Chinese Union Version)",
         "year": "1919",
-        "source_language": "el, he",
+        "source_language": "grc",
         "basis": "public-domain-by-publication-date",
         "review": "not-independently-audited"
       },
@@ -147,7 +147,7 @@
       "provenance": {
         "translator": "和合本 (Chinese Union Version)",
         "year": "1919",
-        "source_language": "el, he",
+        "source_language": "grc",
         "basis": "public-domain-by-publication-date",
         "review": "not-independently-audited"
       },
diff --git a/tests/test_corpus_curation.py b/tests/test_corpus_curation.py
index 0312fd5..ad02c1b 100644
--- a/tests/test_corpus_curation.py
+++ b/tests/test_corpus_curation.py
@@ -245,6 +245,10 @@ def test_adr0008_christianity_canon_scope(self):
             self.assertNotIn("textual_witness", record)
             self.assertNotIn("span_assurance_tier", record)
             self.assertIn("和合本", record["provenance"].get("translator", ""), key)
+            # Per-record source language: these two excerpts are NT, so Koine Greek (ISO 639-3
+            # `grc`) — not modern-Greek `el`, and no `he` (the OT source language belongs to the
+            # whole-edition description, not to an NT excerpt's provenance).
+            self.assertEqual(record["provenance"].get("source_language"), "grc", key)
 
     def test_adr0008_islam_corpus_family(self):
         # ADR 0008 Phase 1 backfill (Islam): the five 馬堅《古蘭經》(Qur'an) records are grouped by