I got this idea from reading The Open Society and Its Enemies on page 8.
The theory of the Chosen People assumes that God has chosen one people to function as the selected instrument of His will, and that this people will inherit the earth.
The little church that my family belonged to, the RLDS church – believed they were these Chosen People. I used to hear the Elders of the church say, with complete confidence “Zion is coming!’ And they meant coming soon – in their children’s lifetime, at the latest.
This is what the early Christians believed – they were all going to join Christ, in heaven! In the RLDS case – it was heaven on earth.
But didn’t happen. And the church membership since then, has developed a number of approaches to help them cope with this.