Concerning the return of Jewish exiles to Judah in the sixth century B.C.E., Isaiah wrote: “Let every valley be raised up, and every mountain and hill be made low. And the knobby ground must become level land, and the rugged ground a valley plain. ”
इसके बावजूद, पुराने ज़माने में और आज भी प्रचार का काम इतने बड़े पैमाने पर हुआ है कि देखकर हैरानी होती है ।