The Lord Jesus has told us what to do and where to begin. “And that repentance and remission of sins should be preached in his name among all nations, beginning at Jerusalem” (Luke 24v47).
“But ye shall receive power, after that the Holy Ghost is come upon you, and ye shall be witnesses unto me both in Jerusalem, and in all Judaea, and in Samaria, and unto the uttermost part of the earth” (Acts 1v8).
Christ’s pattern starts where you are, then moves out.
Iran and the danger of OT prophecy speculation
I was born in Iran and grew up there till my midteens. So this subject is at times brought up …