There's a few hundred million bible believers/readers who will disagree with your, myself included...
I and many others on FR have posted numerous verses of scripture that point out that once saved, always saved...Verses that are in plain, clear writing...
And these are verses that you guys refuse to respond to...And of course you can't...And your religion avoids those scriptures like they are the plague...
A kingdom of believers MUST believe they have replaced Israel during this time of Israel's blindness, in order to claim the covenants and promises made to that Nation. A body of believers KNOW that before the Cross, they were "without Christ, being aliens from the commonwealth of Israel, and STRANGERS from the COVENANTS OF PROMISE, HAVING NO HOPE, and WITHOUT GOD IN THE WORLD;" Eph. 2:12.
They also KNOW that the blood of Christ have made them nigh to God. That God has reconciled both Jew and Gentile unto Himself BY THE CROSS. Eph. 2:16.
A kingdom of believers toil to bring Christ's kingdom to fruition on this earth, so that He may return. A body of believers KNOW that peace will NOT be until He returns and sets up His kingdom. A kingdom looks on this world and works to make it fit for Christ. A body of believers looks to heaven and waits for Christ to take us from this present evil world. Knowing that all man's efforts are in vain who try to do bring about something that ONLY CHRIST CAN AND WILL ACCOMPLISH.
A kingdom of believers cannot be saved. They are taking for themselves something that is not theirs to take. They are rejecting God's reconciliation and free gift for a lie. They are not Israel. And while pretending to be, they are still without Christ, being aliens from the commmonwealth of Israel, and strangers from the covenants of promise, having no hope, and without God in the world. They are as blind as the nation of Israel is right now. Rejecting the Body of Christ for a kingdom that is not theirs to claim.