I agree:
Galatians chapter 3
[26] For ye are all the children of God by faith in Christ Jesus.
[27] For as many of you as have been baptized into Christ have put on Christ.
[28] There is neither Jew nor Greek, there is neither bond nor free, there is neither male nor female: for ye are all one in Christ Jesus.
[29] And if ye be Christ's, then are ye Abraham's seed, and heirs according to the promise.
I agree with this as well:
Galatians chapter 6
[15] For in Christ Jesus neither circumcision availeth anything, nor uncircumcision, but a new creature.
[16] And as many as walk according to this rule, peace be on them, and mercy, and upon the Israel of God.
You lost me here.
What do you mean that we'll "be resurrected by HIS flesh and blood"?
I know that when we see Him that we'll see Him as He is or that we'll get glorified bodies, but where does the Bible teach that we'll receive "HIS flesh and blood"?
Anyhow, I'm still curious as to what MyLighthouse meant, so I'll wait for her explanation. IOW, although I agree that as Christians we're part of "the Israel of God", this very same "Israel of God" excludes many/most natural born Israelites.
Finally, out of respect for the OP, I think that it's best that we (you and I) not get off topic here. IOW, I'm simply asking her to please clarify her opening comment and there are other threads about "Israel" where we can always continue our own discussion.