Ezra 7 can be divided as follows:
Introduction to a new king and time (Ezra 7:1a)
Introduction to Ezra (Ezra 7:1b-Ezra 7:6)
A group of exiles return to Jerusalem (Ezra 7:7–10)
King Artaxerxes writes a letter to Ezra (Ezra 7:11–26)
Ezra’s personal reflections (Ezra 7:27–28)
1 Now after this, in the reign of Artaxerxes king of Persia, Ezra the son of Seraiah, son of Azariah, son of Hilkiah,