On the words of the Possuk in Bamidbar (27:20) וְנָתַתָה מֵהוֹדְ ךָ עָלָיו לְמַעַן יִשְמְעוּ כָל־עֲדַת בְנֵי יִשְ רָאֵל “You shall bestow some of your majesty upon him so that all the congregation of the B’nei Yisroel will take heed.” Rashi says on the words מֵהוֹדְ ךָ “But not all of your majesty. Thus, we learn that the face of Moshe was radiant like the sun, whereas the face of Yehoshua was like the moon”. — [Sifrei Pinchas 23, b.b. 75a] Sifsei Chachomim explain: The face of Moshe was like the sun. Meaning: The face of Moshe shone more than that of Yehoshua. There are those who explain that like the sun takes its light from Hashem and the moon takes light from the sun, so too Moshe took the rays of light which shone from Hashem’s face, and Yehoshua took them from Moshe.
Fluctuates
The moon waxes and wanes. Like the words of our sages of blessed memory: the virtue of Moshe over Yehoshua is like the virtue of the sun over the moon. The light of the sun is much greater and shines continuously with the same vibrancy whereas the moon has changes throughout the month. So to if Moshe was to bring the B’nei Yisroel into Eretz Yisroel it would have been an eternal entry without changes from time to time, but since it was Yehoshua who brought us in to Eretz Yisroel there is the possibility of change.
