The Book of Ezra is a book of the Hebrew Bible; which formerly included the Book of Nehemiah in a single book, commonly distinguished in scholarship as Ezra-Nehemiah. The two became separated with the first printed rabbinic bibles of the early 16th century, following late medieval Latin Christian tradition. Composed in Hebrew and Aramaic, its subject is the Return to Zion following the close of the Babylonian captivity, and it is divided into two parts, the first telling the story of the first return of exiles in the first year of Cyrus the Great (538 BC) and the completion and dedication of the new Temple in Jerusalem in the sixth year of Darius I (515 BC), the second telling of the subsequent mission of Ezra to Jerusalem and his struggle to purify the Jews from marriage with non-Jews. Together with the Book of Nehemiah, it represents the final chapter in the historical narrative of the Hebrew Bible.
Ezra is written to fit a schematic pattern in which the God of Israel inspires a king of Persia to commission a leader from the Jewish community to carry out a mission; three successive leaders carry out three such missions, the first rebuilding the Temple, the second purifying the Jewish community, and the third sealing the holy city itself behind a wall. (This last mission, that of Nehemiah, is not part of the Book of Ezra.) The theological program of the book explains the many problems its chronological structure presents. It probably appeared in its earliest version around 399 BC, and continued to be revised and edited for several centuries before being accepted as scriptural in the early Christian era.
The Book of Ezra consists of ten chapters: chapters 1-6, covering the period from the Cyrus the Great to the dedication of the Second Temple, are told in the third person; chapters 7-10, dealing with the mission of Ezra, are told largely in the first person. The book contains several documents presented as historical inclusions, written in Aramaic while the surrounding text is in Hebrew (1:2-4, 4:8-16, 4:17-22, 5:7-17, 6:3-5, 6:6-12, 7:12-26) 
In the early 6th century BC, the Kingdom of Judah rebelled against the Neo-Babylonian Empire and was destroyed. As a result, the royal court, the priests, the prophets and scribes were taken into captivity in the city of Babylon. There a profound intellectual revolution took place, the exiles blaming their fate on disobedience to their God and looking forward to a future when he would allow a purified people to return to Jerusalem and rebuild the Temple in Jerusalem. The same period saw the rapid rise of Persia, previously an unimportant kingdom in present-day southern Iran, to a position of great power, and in 539 BC Cyrus II, the Persian ruler, conquered Babylon.
It is difficult to describe the parties and politics of Judea in this period because of the lack of historical sources, but there seem to have been three important groups involved: the returnees from the exile who claimed the reconstruction with the support of Cyrus II; "the adversaries of Judah and Benjamin"; and a third group, "people of the land", who seem to be local opposition against the returnees building the Temple in Jerusalem.
The following table is a guide to major events in the region during the period covered by the Book of Ezra:
|||Reign (BC)||Main events||Correlation with Ezra-Nehemiah|
|Cyrus II||550[?]-530||539 BC Fall of Babylon||Directive to the Jews to rebuild the Temple and first return of the exiles to Jerusalem (taken as occurring in 538, since Babylon fell in October 539)|
|Cambyses||530-522||525 Conquest of Egypt|
|Darius I||522-486||Secures the throne in 520/519 after fighting off various rivals; failed punitive invasion of Greece||515 Temple rebuilt. In the book of Daniel, Darius has the old title of Darius I (king of the Chaldeans = Babylonians), while Koresh has the new one of Xerxes (king of the Persians).|
|Xerxes||486-465||Failed attempt to conquer Greece; beginning of struggle with Greeks for control of the eastern Mediterranean||(Alternative) directive by Koresh to the Jews to rebuild the Temple and first return of the exiles to Jerusalem.|
|Artaxerxes I||465-424||460-456 Successful suppression of Greek-supported revolt in Egypt
449 Revolt by Megabyzus, governor of the territory which included Judah
|Currently most widely accepted period for arrival of Ezra "in the seventh year of Artaxerxes"|
Second return of the exiles to Jerusalem (in 458 if the king is Artaxerxes I, or 428 if the year is read as his thirty-seventh instead of his seventh)
445-433 Nehemiah's mission (returns before the death of Artaxerxes)
|Darius II||423-404||(Alternative) Temple rebuilt.|
|Artaxerxes II||404-358||401 Egypt regains independence||(Alternative) period for arrival of Ezra and second return of exiles to Jerusalem (in 398 if the king is Artaxerxes II)|
|Artaxerxes III||358-338||Egypt reconquered|
|Darius III||336-330||The Achaemenid Empire conquered by Alexander the Great|
The single Hebrew book Ezra-Nehemiah, with title "Ezra", was translated into Greek around the middle of the 2nd century BC. The Septuagint calls Esdras B to Ezra-Nehemiah and Esdras A to 1 Esdras respectively; and this usage is noted by the early Christian scholar Origen, who remarked that the Hebrew 'book of Ezra' might then be considered a 'double' book. Jerome, writing in the early 5th century, noted that this duplication had since been adopted by Greek and Latin Christians. Jerome himself rejected the duplication in his Vulgate translation of the Bible into Latin from the Hebrew; and consequently all early Vulgate manuscripts present Ezra-Nehemiah as a single book,. However, from the 9th century onwards, Latin bibles are found that for the first time separate the Ezra and Nehemiah sections of Ezra-Nehemiah as two distinct books, then called the first and second books of Ezra; and this becomes standard in the Paris Bibles of the 13th century. It was not until 1516/17, in the first printed Rabbinic Bible of Daniel Bomberg that the separation was introduced generally in Hebrew Bibles.
1 Esdras, also known as "Esdras ?", is an alternate Greek-language version of Ezra. This text has one additional section, the 'Tale of the Three Guardsmen' in the middle of Ezra 4. 1 Esdras (3 Esdras in the Vulgate) was considered apocryphal by Jerome.
Scholars are divided over the chronological sequence of the activities of Ezra and Nehemiah. Ezra 7:8 says that Ezra arrived in Jerusalem in the seventh year of king Artaxerxes, while Nehemiah 2:1-9 has Nehemiah arriving in Artaxerxes' twentieth year. If this was Artaxerxes I (465-424 BC), then Ezra arrived in 458 and Nehemiah in 445 BC. Nehemiah 8-9, in which the two (possibly by editorial error) appear together, supports this scenario.
The contents of Ezra-Nehemiah are structured in a theological rather than chronological order: "The Temple must come first, then the purifying of the community, then the building of the outer walls of the city, and so finally all could reach a grand climax in the reading of the law."
The narrative follows a repeating pattern in which the God of Israel "stirs up" the king of Persia to commission a Jewish leader (Zerubbabel, Ezra, Nehemiah) to undertake a mission; the leader completes his mission in the face of opposition; and success is marked by a great assembly. The tasks of the three leaders are progressive: first the Temple is restored (Zerubabbel), then the community of Israel (Ezra), and finally the walls which will separate the purified community and Temple from the outside world (Nehemiah). The pattern is completed with a final coda in which Nehemiah restores the belief of Yahweh. This concern with a schematic pattern-making, rather than with history in the modern sense of a factual account of events in the order in which they occurred, explains the origin of the many problems which surround both Ezra and Nehemiah as historical sources.
Twentieth-century views on the composition of Ezra revolved around whether the author was Ezra himself (and who may have also authored the Books of Chronicles) or was another author or authors (who also wrote the Chronicles). More recently it has been increasingly recognised that Ezra, Nehemiah and Chronicles all have extremely complex histories stretching over many stages of editing, and most scholars now are cautious of assuming a unified composition with a single theology and point of view. As an indication of the many layers of editing which Ezra has undergone, one recent study finds that Ezra 1-6 and Ezra 9-10 were originally separate documents, that they were spliced together at a later stage by the authors of Ezra 7-8, and that all have undergone extensive later editing.
Seven purported Persian decrees of kings or letters to and from high officials are quoted in Ezra. Their authenticity has been contentious; while some scholars accept them in their current form, most accept only part of them as genuine, while still others reject them entirely. L.L. Grabbe surveys six tests against which the documents can be measured (comparative known Persian material, linguistic details, contents, presence of Jewish theology, the Persian attitude to local religions, and Persian letter-writing formulas) and concludes that all the documents are late post-Persian works and probable forgeries, but that some features suggest a genuine Persian correspondence behind some of them.