Person

Cyrus the Great

Cyrus II of Persia founded the Achaemenid Empire, took Babylon in 539 BC, and issued the decree that permitted the Jewish exiles to return to Jerusalem and rebuild the Temple. He is the only Gentile in the Hebrew Bible called God's mashiach, his anointed one (Isaiah 45:1), and one of very few foreign rulers Scripture treats with unqualified approval.

Background

Cyrus was the son of Cambyses I, ruler of Anshan, a Persian vassal kingdom under Median overlordship. Herodotus reports that his mother Mandane was a daughter of Astyages, king of the Medes, which would make Cyrus the grandson of the king he overthrew; the detail is part of a legendary birth narrative and is not independently confirmed.

The main phases of his reign:

c. 559 BC, accession as king of Anshan
c. 550 BC, defeat of Astyages and absorption of the Median Empire, converting a vassal kingdom into an imperial power
c. 547-546 BC, defeat of Croesus of Lydia and annexation of Asia Minor
October 539 BC, victory at Opis followed by the fall of Babylon, which surrendered without a siege
530 BC, death on campaign in the northeast, according to Herodotus against the Massagetae under their queen Tomyris

He was buried at Pasargadae, where his tomb still stands. He was succeeded by his son Cambyses II.

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The Persian policy toward deported peoples

Babylonian imperial practice had been mass deportation. Cyrus reversed it, permitting displaced populations to return home and restore their local sanctuaries. The policy is documented in Cyrus's own voice on the Cyrus Cylinder, recovered in 1879 from a temple foundation in Babylon, which describes him returning captive peoples and their gods to their lands.

The cylinder is not a copy of the biblical decree. It is a Babylonian document written in the conventional idiom of Mesopotamian royal propaganda, presenting Cyrus as chosen by Marduk to restore proper worship. What it establishes is the policy framework within which the biblical decree fits comfortably, which is a more modest and more defensible claim than the one sometimes made for it.

Whether the policy reflected genuine religious tolerance or an efficient method of securing the loyalty of subject populations is debated and probably a false alternative. Persian administration consistently found it cheaper to govern through restored local institutions than through occupation.

In Scripture

Cyrus appears across three bodies of material.

Isaiah names him twice in the oracles of chapters 44 and 45. He is called God's shepherd who will perform all his pleasure and order the rebuilding of Jerusalem and the Temple (44:28), and God's anointed, whose right hand God holds to subdue nations before him (45:1). The oracle twice states that Cyrus does not know the God who commissions him (45:4, 45:5), which is the passage's central theological point: God's sovereignty operates through rulers outside the covenant.

Chronicles and Ezra record the decree itself. 2 Chronicles 36:22-23 and Ezra 1:1-4 present it as the stirring of Cyrus's spirit by the LORD in the first year of his reign over Babylon, authorizing the return and the rebuilding. Ezra 5:13-17 and 6:3-5 refer back to the decree when its authenticity is challenged during the reign of Darius, and describe the search of the archives at Ecbatana that located it.

Daniel places its closing visions in his reign. Daniel 1:21 notes that Daniel continued to the first year of Cyrus, 6:28 that Daniel prospered in the reign of Cyrus the Persian, and 10:1 dates a vision to the third year of Cyrus.

The dating question

Isaiah names Cyrus roughly a century and a half before he lived, if the book is the work of the eighth-century prophet. This is one of the pivot points in the critical debate over the composition of Isaiah, and the codex states both positions rather than assuming one.

Traditional and conservative reading: the naming is predictive prophecy, and Isaiah 41:21-29 and 44:6-8 appeal to precisely this capacity, challenging the idols to declare things to come as the mark of deity. On this reading the specificity is the point of the passage, and removing it removes the argument the text is making.
Critical reading: the Cyrus material belongs to a sixth-century author or school writing during or near the exile, conventionally Deutero-Isaiah, addressing an audience for whom Cyrus was a contemporary. On this reading the naming is not prediction but address.

The disagreement is genuine and long-standing, and neither side is without serious scholarship. It does not affect the arguments in Cyrus Saved the Jews Not Jesus Objection Defeater, which run on the received text as both sides have it.

Theological significance

Three points recur wherever Cyrus is discussed in the codex.

God commissions those outside the covenant. The twice-repeated "though thou hast not known me" is not an incidental qualifier. Isaiah is arguing that divine sovereignty is not confined to Israel or to those who acknowledge God, which is a claim with wide implications for providence.
Anointing is functional, not automatically messianic. The application of mashiach to Cyrus is one of the clearest demonstrations that the term designates commissioning for a task rather than a single eschatological office. It stands alongside its use for the serving high priest (Leviticus 4:3), for Saul (1 Samuel 24:6), and for the patriarchs (Psalm 105:15).
The return was real but not final. Scripture honors what Cyrus did without treating it as the resolution of Israel's condition. The post-exilic writers who received the deliverance say so directly: Haggai 2:3, Nehemiah 9:36, Ezra 9:9.