As I comment on various blogs around the universe (or, for the time being at least, simply around this globe), I've noticed that for some reason the idea that Jesus is the "true" Israel seems, at best, to be a novel but unbiblical concept or, at worst, downright heresy that borders on anathema! Sometimes people respond to me as if I've just arrived from another planet! (Of course, many people who know me in person have accused me of that as well!)
I never really wanted to appeal to others to make my case, but Kim Riddlebarger over at The Riddleblog has a series going on "Amillennialism 101" in which his latest topic is
"Jesus Christ, the True Israel". Previous audio messages in this series have been posted and I encourage you to make use of this free resource (along with many posts at The Vossed World) to help understand Biblical Eschatology.
If you are interested at all in how the Bible understands "Israel" in relation to Jesus Christ...well...just read my material! :-) Or even better, listen to a trained Theologian/Pastor/Author/Seminarian, etc., and get a better understanding. Of course, you can also get a thorough Biblical Theological understanding of Jesus as the True Israel by going to SGCC's SermonAudio site where you'll find this concept in many sermons dealing with the nation of Israel.