The promises were spoken to Abraham and to his seed. The Scripture does not say "and to seeds," meaning many people, but "and to your seed," meaning one person, who is Christ. (Galatians 3: 15-16)
And a few more down below relating to this concept:
Not all who are descended from Israel are Israel. Nor because they are his descendants are they all Abraham's children. On the contrary, "It is through Isaac that your offspring will be reckoned." In other words, it is not the natural children who are God's children, but it is the children of the promise who are regarded as Abraham's offspring. (Romans 9:6-8)
A man is not a Jew if he is only one outwardly, nor is circumcision merely outward and physical. No, a man is a Jew if he is one inwardly; and circumcision is circumcision of the heart, by the Spirit, not by the written code. Such a man's praise is not from men, but from God. (Galatians 3:15-16)
One author of a site I frequent asked: "Will the real temple please stand?"
Jesus answered them, "Destroy this temple, and in three days I will raise it up." The Jews then said, "It has taken forty-six years to build this temple, and will you raise it up in three days?" But he was speaking about the temple of his body. ~ John 2:18-21
And I saw no temple in the city, for its temple is the Lord God the Almighty and the Lamb. (Revelation 21:22)
There are more that I'd really love to get your thoughts on...but I'll leave it there for now.