I am a Christian Zionist. Given the source of our Word, and the Word made flesh, this is an unexceptional statement. Or should be. All Christians who confess Jesus the Nazarene as Lord, and whose faith is grounded in Scripture, must, definitionally, be of the people Israel.
That the Church throughout the centuries had denied this truth is to its shame. It took a Reformation to remind us of these facts. Forget not that Martin Luther and those who followed him in Geneva were falsely libeled as “Judaizers” of what the Roman Church had corrupted into something divorced from Zion.
Both the history of Zion, and prophecies of the end times center around Zion. The explanation that I’ve heard from those who deny their Jewish roots is that with the coming of Jesus, the old covenant with the Jews had been superceded by the new covenant.
Although it took almost 2,000 years, the Roman Church has caught up with (some of) us Protestants and now acknowledges that God does not break His Word, His promises made to Israel. We have not replaced the Jews as the special objects of salvation by God. We have joined them, even if they may not consider it so.
The lesson, now learned by most, is that while Scripture may be divided into the “Old” and the “New” Testaments, they are really a seamless whole, preparing the world for its salvation that comes out of Zion. One clear statement that affirms this is from Paul’s letter to the church at Rome (Romans 11:26-29, KJV):
26 And so all Israel shall be saved: as it is written, There shall come out of Sion the Deliverer, and shall turn away ungodliness from Jacob:
27 For this is my covenant unto them, when I shall take away their sins.
Jacob, of course, being Israel. And God’s promise to deliver Israel to the land of Zion was made clearly, and with geographic specifics, including, for example, virtually all of the current-day Kingdom of Jordan.
The fact that we goyim are now an organic part of Israel does not change that promise. And, if we are faithful to His Word, the promise also binds us to Zion with cords that will not be broken in this world.