Deuteronomy 32:44

הוא והושע בן נון HE AND HOSHEA THE SON OF NUN — It was the Sabbath of transmission of office (lit., “of two pairs” of judges): authority was taken from one and given to the other (Sotah 13b). Moses appointed a Meturgeman for Joshua that he (Joshua) should hold in public an Halachic discourse during his (Moses') lifetime in order that the Israelites should not say to him, “During your teacher’s lifetime you did not dare to raise your head!” — And why does it (Scripture) here call him Hosea (since his name had long since been changed to that of Joshua — cf. Numbers 13:16)? In order to indicate that he did not become haughty, for although this dignity had been conferred upon him, he assumed a humble bearing as at the commencement of his career (cf. Sifrei Devarim 334:3).

וַיָּבֹ֣א מֹשֶׁ֗ה וַיְדַבֵּ֛ר אֶת־כׇּל־דִּבְרֵ֥י הַשִּׁירָֽה־הַזֹּ֖את בְּאׇזְנֵ֣י הָעָ֑ם ה֖וּא וְהוֹשֵׁ֥עַ בִּן־נֽוּן׃

And Moshe came and spoke all the words of this poem in the ears of the people, he, and Hoshea the son of Nun.