"'And I saw a new heaven and a new earth,' writes the biblical prophet. The foundation for a new earth is a new heaven--the awakened consciousness."
The N.E.E. is based on the principle expressed by Jesus: "Give, and it will be given to you: good measure, pressed down, shaken together, and running over, will be given to you. For with the same measure you measure it will be measured back to you." (WEB)
Now Jesus certainly never said, "Give, but don't sell." But the NEE is predicated on the idea that if you're going to be given so much as a result of giving, why bother to sell?