You believe the Body of Christ is "spiritual Israel"?
As we are both physical and spiritual beings, I believe that Christ Yeshua is head of his physical and spiritual body, the Church, of which the Gentiles and the Israel he came to renew is part of, so that in the fulness of time, he will be the King of the restored Israel, into which Gentiles are grafted into, when they make Christ Yeshua their King as well, as will Israel when they come out of their partial hardening (Romans 11:25).
Acts 1 (ESV)
6 So when they had come together, they asked him, "
Lord, will you at this time restore the kingdom to Israel?"
7 He said to them, "It is not for you to know times or seasons that the Father has fixed by his own authority.
8 But you will receive power when the Holy Spirit has come upon you, and
you will be my witnesses in Jerusalem and in all Judea and Samaria, and to the end of the earth."
9 And when he had said these things, as they were looking on,
he was lifted up, and a cloud took him out of their sight. 10 And while they were gazing into heaven as he went, behold, two men stood by them in white robes,
11 and said, "Men of Galilee, why do you stand looking into heaven?
This Jesus, who was taken up from you into heaven, will come in the same way as you saw him go into heaven."
Romans 11 (ESV)
1 I ask, then, has God rejected his people? By no means! For I myself am an Israelite, a descendant of Abraham, a member of the tribe of Benjamin.
7 What then? Israel failed to obtain what it was seeking. The elect obtained it, but the rest were hardened,
8 as it is written, "
God gave them a spirit of stupor, eyes that would not see and ears that would not hear, down to this very day."
9 And David says, "Let their table become a snare and a trap, a stumbling block and a retribution for them;
10 let their eyes be darkened so that they cannot see, and bend their backs forever."
11 So I ask, did they stumble in order that they might fall? By no means!
Rather through their trespass salvation has come to the Gentiles, so as to make Israel jealous.
12 Now if their trespass means riches for the world, and if their failure means riches for the Gentiles, how much more will their full inclusion mean!
13 Now I am speaking to you Gentiles. Inasmuch then as I am an apostle to the Gentiles, I magnify my ministry
14 in order somehow to make my fellow Jews jealous, and thus save some of them.
15 For
if their rejection means the reconciliation of the world, what will their acceptance mean but life from the dead?
16 If the dough offered as firstfruits is holy, so is the whole lump, and if the root is holy, so are the branches.
17 But if some of the branches were broken off, and you, although a wild olive shoot, were grafted in among the others and now share in the nourishing root of the olive tree,
18 do not be arrogant toward the branches. If you are, remember it is not you who support the root, but the root that supports you.
19 Then you will say, "
Branches were broken off so that I might be grafted in."
20 That is true.
They were broken off because of their unbelief, but you stand fast through faith.
So do not become proud, but fear. 21 For if God did not spare the natural branches, neither will he spare you. 22 Note then the kindness and the severity of God: severity toward those who have fallen, but God's kindness to you, provided you continue in his kindness.
Otherwise you too will be cut off. 23 And even they,
if they do not continue in their unbelief, will be grafted in, for God has the power to graft them in again. 24 For if you were cut from what is by nature a wild olive tree, and grafted, contrary to nature, into a cultivated olive tree,
how much more will these, the natural branches, be grafted back into their own olive tree. 25 Lest you be wise in your own sight, I do not want you to be unaware of this mystery, brothers:
a partial hardening has come upon Israel, until the fullness of the Gentiles has come in. 26 And
in this way all Israel will be saved, as it is written, "
The Deliverer will come from Zion, he will banish ungodliness from Jacob"; 27 "and this will be my covenant with them when I take away their sins."
28 As regards the gospel, they are enemies for your sake. But as regards election, they are beloved for the sake of their forefathers.
29 For
the gifts and the calling of God are irrevocable. 30 For just as you were at one time disobedient to God but now have received mercy because of their disobedience,
31 so they too have now been disobedient in order that by the mercy shown to you they also may now receive mercy.
32 For God has consigned all to disobedience, that he may have mercy on all. 
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