Commentaire de citation sur Les Nombres 11:28

בחר לנו CHOOSE OUT MEN FOR US — for me and for you: he (Moses) placed him (Joshua) on the same level with himself. They (the Rabbis) derived from here the teaching: let thy disciple’s honour be as dear to thee as thy own. And whence may we derive the next statement in thee well-known passage: and thy colleague’s honour as dear to thee as the reverence due to thy teacher? Because it is said, (Numbers 12:11) “And Aaron spake to Moses, “I beseech thee, my lord” — but surely Aaron was older than his brother and yet by addressing him as “my lord” he treated his colleague (Moses) as his teacher! “And the reverence due to thy teacher as the reverence due to God” — whence may this be derived? Because it is said, (Numbers 11:28) “[And he (Joshua) said (to his teacher, Moses)] “My lord, Moses, כלאם”, destroy them (כַּלֵּם) from out of the world! they who rebel against thee deserve to be destroyed just the same as though they had rebelled against the Holy One, blessed be He (Mekhilta).

"and the reverence of your teacher like the reverence of Heaven": As it is written (Numbers 11:28), "my master Moshe, destroy them" - destroy them from the world. [He meant by this to say,] "Since they rebelled against you, it is as if they rebelled against the Holy One, blessed be He and they are liable for destruction."

ויקרא משה להושע בן נון יהושע, the Torah means that this man was known as a man of valour by the name of Hosheah among the members of his tribe. The fact that he has been referred to as “Joshua” already in Numbers 11,28 is because in his capacity as Moses’ personal valet Moses had changed his name in the form of a prayer asking that he be the instrument of his own salvation and that of others.