About this week's portion, Shlach Lecha, I remember reading that the Lubavitcher Rebbe said that the ten spies intentionally gave an alarming report because they wanted Israel to remain in the desert indefinitely.
The reason was that, in the desert, they were very close to God and He was taking care of them completely. On the other hand, in the Promised Land, God would be more distant, they would have to fight the inhabitants, cultivate the land, earn a living, build an entire country... In other words, they would have to live in the real world. They didn't want that, so they tried to frighten the people into forgetting the whole thing.
Does anyone know (1) where the Rebbe said that and (2) what his own source was?