Complex sentence: Cyrus the Great entered the city of Babylon and detained Nabonidus and finish the Babylonian captivity and gave the Jews permission to return to Yehud province and to rebuild the Temple; but most Jews chose to remain in Babylon.
Split into simpler sentences: Cyrus the Great entered the city of Babylon, detained Nabonidus and ended the Babylonian captivity. He gave the Jews permission to return to Yehud province and to rebuild the Temple; but most Jews chose to remain in Babylon.