The Book of Nehemiah is, along with the Book of Ezra, a book of the Hebrew Bible. Told largely in the form of a first-person memoir, it concerns the rebuilding of the walls of Jerusalem by Nehemiah, a Jew who is a high official at the Persian court, and the dedication of the city and its people to God's laws (Torah).
The events take place in the second half of the 5th century BC. Listed together with the Book of Ezra as Ezra-Nehemiah, it represents the final chapter in the historical narrative of the Hebrew Bible.
The original core of the book, the first-person memoir, may have been combined with the core of the Book of Ezra around 400 BC. Further editing probably continued into the Hellenistic era.
The book tells how Nehemiah, at the court of the king in Susa, is informed that Jerusalem is without walls and resolves to restore them. The king appoints him as governor of Judah and he travels to Jerusalem. There he rebuilds the walls, despite the opposition of Israel's enemies, and reforms the community in conformity with the law of Moses. After 12 years in Jerusalem, he returns to Susa but subsequently revisits Jerusalem. He finds that the Israelites have been backsliding and taking non-Jewish wives, and he stays in Jerusalem to enforce the Law.
The book is set in the 5th century BC. Judah is one of several provinces within a larger satrapy (a large administrative unit) within the Achaemenid Empire. The capital of the empire is at Susa. Nehemiah is a cup-bearer to king Artaxerxes I of Persia – an important official position.
At his own request Nehemiah is sent to Jerusalem as governor of Yehud, the official Persian name for Judah. Jerusalem had been conquered and destroyed by the Babylonians in 586 BC and Nehemiah finds it still in ruins. His task is to rebuild the walls and to re-populate the city. He faces opposition from three powerful neighbours, the Samaritans, the Ammonites, and the Arabs, as well as the city of Ashdod, but manages to rebuild the walls. He then purifies the Jewish community by enforcing its segregation from its neighbours and enforces the laws of Moses.