Torah, Numbers, 14:36 – 14:38: As for the men whom Moses had sent to scout the Land, who returned and caused the entire congregation to complain against him by spreading [a slanderous] report about the Land. The men who spread an evil report about the Land died in the plague, before the Lord. But Joshua the son of Nun and Caleb the son of Jephunneh remained alive of the men who went to tour the Land.
Joshua and Caleb are those desires within us that can still rise above reason. They are needed for the connection with the land of Israel.
Since they are righteous, they remain in the generation as a spiritual record (Reshimo) of what they saw in the promised land. This is why the entire generation of the desert dies except for those two.
Like everyone else, they wander in the desert for forty years. At every level, it is necessary to go through forty rungs in order to rise to the property of Bina from the Malchut, which they just revealed as being incapable of working with egoism. After all, they cannot cross the borders of the land of Israel without gaining the property of Bina.
From KabTV’s “Secrets of the Eternal Book” 5/6/15