The Lord descended in a cloud and spoke to him, and He took some of the spirit that was on him and bestowed it on the seventy elders. And when the spirit rested upon them, they prophesied, but they did not continue. (Numbers 11:25(

Apropos the prophecy of the seventy elders, the Gaon of Vilna quotes the Sages' teaching:
Rava said: All that Ezekiel saw, the prophet Isaiah saw as well. To what may Ezekiel be compared? To a villager who saw the king (and is excited by all the extravagances of the king’s palace and everything it contains, as he is unaccustomed to them). And to what may Isaiah be compared? To a city dweller who saw the king. (Such an individual focuses on the encounter with the king, and is oblivious to all the distractions.) (Babylonian Talmud, Ḥagiga 13b)

The Gaon explains:
Isaiah prophesied within the Land of Israel; therefore, all believed him and there was no need to provide any signs of veracity, as one who sees the king in the city, where the king's custom is to be, hence there is no need to provide a sign that the king has been seen. Ezekiel, however, was like a villager, that is he was in the diaspora and outside the Land, where the King is not typically found, just as a monarch does not customarily visit villages. Hence, people did not believe that Ezekiel experienced revelation of the Shechina, and it was necessary for him to provide signs that he had indeed encountered the Shechina.

That is, the distinction between the two prophets was not related to the individuals, but to the venues of their respective prophecies. In Kuzari, Rabbi Yehuda haLevi writes that prophecy is possible only with the Land of Israel or on behalf of the Land. Based upon this axiom, the Master of all Prophets was able to receive prophecy because the content of his prophecies was bringing the Chosen Nation to the Chosen Land. Similarly, the seventy elders merited prophecy which was related to the Land.

Concerning Ezekiel, who prophesied in the diaspora, the Gaon explains, based upon Midrash Mechilta, that since he had received prophecy prior to being exiled from the Land, Ezekiel was able to continue to prophesy outside the Land.

Thus, we have an additional demonstration of the superiority of the Land of Israel over all other lands. (David Magence)

Shabbat Shalom!
The Va’ad