Some of the key words/ideas that appear several times in these two chapters are:
temple
(6x (Ezra 5:14–15; Ezra 6:5))house of God
(24x (Ezra 5:2–3, Ezra 5:8–9, Ezra 5:11–17; Ezra 6:3–5, Ezra 6:7–8, Ezra 6:11–12, Ezra 6:15–17))God of heaven
(4x (Ezra 5:11–12; Ezra 6:9–10))God of Israel
(4x (Ezra 5:1; Ezra 6:14, Ezra 6:21–22))
1 Now the prophets, Haggai and Zechariah the son of Iddo, prophesied to the Jews who were in Judah and Jerusalem, in the name of the God of Israel who was over them.