Millions of Americans believe in the afterlife, and author and scholar Joseph Telushkin is no exception. The Orthodox rabbi has written extensively about Judaism and says that the concept of God is incompatible with the idea that life ends at death.

He holds that conviction so strongly, he tells NPR's Robert Siegel, because he believes that God is just — and he has to assume that a just God would provide some reward to a person who has lived his or her life well, while imposing a different fate upon those who do evil.