Then she [the queen of Sheba] said to the king, "It was a true report which I heard in my own land about your words and your wisdom. "Nevertheless I did not believe the reports, until I came and my eyes had seen it. And behold, the half was not told me. You exceed in wisdom and prosperity the report which I heard. How blessed are your men, how blessed are these your servants who stand before you continually and hear your wisdom.
1 Kings 10:6-8
The Queen of the South will rise up with this generation at the judgment and will condemn it, because she came from the ends of the earth to hear the wisdom of Solomon; and behold, something greater than Solomon is here.
Some historians believe that the Queen of Sheba was actually from Yemen. The Jewish community in Yemen traces its heritage to relationships with Israel established during the days of Solomon. Today, however, Muslims have forced all but a handful of Jews from Yemen. The remaining Jews live in a walled community isolated from their neighbors. Christians also are an isolated minority in Yemen, and conversion to Christianity is a capital crime.
From a recent (2015) article in Aish.com:
…Yemen – which long boasted one of the world’s oldest and largest Jewish communities – is today almost entirely empty of the Jews who called Yemen home for thousands of years. Yemeni Jews trace their community back to the time of King Solomon, when traders ventured far south into the Arabian peninsula and stayed there, establishing a rich, thriving Jewish community in what is today Yemen. Preceding both Christianity and Islam in the area, Judaism long defined Yemen’s history. For a time, 1500 years ago, Yemen was even ruled by a dynasty of kings who converted to Judaism.
What makes entire nations fertile ground for the Word of God at one period of their history and demonic opponents of the truth at another period of their history? My own country, the United States, is quickly shifting from a missionary-sending country to a missions destination, hostile to the gospel of the Lord Jesus Christ.
I have lots of thoughts and theories on the subject, but one application: Take advantage of any period of time, any people group, or any geographical location that is presently open to the gospel. God presents open doors for short periods of time.
Behold, I have put before you an open door which no one can shut,
Many Christians are called to pioneer closed doors, but woe to us when we neglect the open door.
For me to live is Christ.