[HarleyD]

If the saga of the Israelites meant nothing to modern Christians then this would not be true.

Not only was Israel the maintainer of the law, but they were give to us as an example and warning.

As far as the Jews, only those who believe in and obey the Son are saved:

Joh_3:36 Whoever believes in the Son has eternal life; whoever does not obey the Son shall not see life, but the wrath of God remains on him.

This would include any "Jew". And if a Jew becomes a believer in Christ, then isn't he a Christian?

[HiTech RedNeck]

Yes; a Jew who trusts in Christ for salvation (and all that this entails) is a Christian. Almost all Christians known in the New Testament accounts were Jews. It was still common enough for that to be the general case when Revelation was written (and hence the references to “synagogues of Satan” and to being truly Jews). Christianity doesn’t supersede Judaism, it completes Judaism, it provides the capstone of the Son of the same God that the Hebrews worshiped and this Son’s unique ministry. The story is still being played out today with literal Jews who mostly haven’t believed yet that Jesus is the Messiah. One day it will become obvious to them too.