"When the Lord thy God shall enlarge thy border, as He hath promised
thee" (Deut. xii. 20). Rabbi Yitzchak said, "This scroll no man knows
how long and how broad it is, but when unrolled it speaks for itself,
and shows how large it is. It is so with the land of Israel, which, for
the most part, consists of hills and mountains; but when the Holy
One--blessed be He!--shall level it, as it is said (Isa. xl. 4), 'Every
valley shall be raised and every mountain and hill shall be made low,
and the crooked shall be made straight, and the rough places smooth,'
then shall that land speak, as it were, for herself, and its extent
THE MIDRASHIM, _Devarim Rabbah_, chap. 4.