“Christians mostly think of Iran as one of the nations that Ezekiel 38 & 39 prophesies will invade Israel in the last days and be destroyed by God. The others include Russia, Turkey, parts of Sudan, & Libya.
There is a lesser-known prophecy in the book of Jeremiah which offers a glimpse of a restoration of Iran. Coincidentally it is another 38 & 39, Jeremiah 49:38-39.
“I will set my throne in Elam and destroy her king and officials,” declares the Lord. “Yet I will restore the fortunes of Elam in days to come,” declares the Lord. Reports from inside Iran indicate that the Gospel has taken root. “