There are some strange connections to Isaiah 49.
Isaiah 49 talks about what the true Messiah, the true Christ, of the Jews will do in Isaiah 49:6, which says,
“yes, he says, It is too light a thing that you should be my servant to raise up the tribes of Jacob, and to restore the preserved of Israel: I will also give you for a light to the Gentiles, that you may be my salvation to the end of the earth.”
Then of all things, Paul says that Isaiah 49:6 is a command to us!
An audio lesson.
Yes, it is a fact, even Old Testament prophecy contains commands to us, both Jew and those of the nations, the gentiles.
For an overview of the Christian age, read Revealing the Christian Age by Neal Fain.
For details of the part the Jews will finally play in all of this, read Jewish Chronices by Neal Fain. Both are available from your book seller.