The Theft of Cyrus
How Isaiah 45 Rewrote Ahura Mazda Into Yahweh — The Textual Evidence Summary of Findings This investigation presents textual and scholarly evidence that Isaiah chapter 45 — one of the most theologically significant chapters in the Hebrew Bible — functions as an act of theological appropriation. Specifically, the evidence indicates that an anonymous Jewish author writing during the Babylonian Exile (c.
What this resource contributes
How Isaiah 45 Rewrote Ahura Mazda Into Yahweh — The Textual Evidence Summary of Findings This investigation presents textual and scholarly evidence that Isaiah chapter 45 — one of the most theologically significant chapters in the Hebrew Bible — functions as an act of theological appropriation. Specifically, the evidence indicates that an anonymous Jewish author writing during the Babylonian Exile (c. 545-539 BCE) systematically took cosmological claims attributed to Ahura Mazda in the Zoroastrian Gathas and reassigned them to Yahweh , the God of Israel. This is not a fringe claim. The evidence presented here is drawn primarily from the Encyclopaedia Iranica — the gold-standard academic reference on Iranian civilization, published under the auspices of Columbia University — supplemented by standard biblical scholarship and comparative textual analysis.
Topics and source signals
Primary sources detected
Yasna · Gathas · Cyrus Cylinder · Hebrew Bible