דברים ג:כא פירוש: אור החיים, רבנו בחיי וחזקוני

ואת יהושוע צויתי, "And I commanded Joshua, etc." Moses meant that he commanded Joshua not to be afraid of these nations, as we find at the end of verse 22: לא תיראום "you must not be afraid of them." Moses did not repeat the words "your eyes are seeing" at the end of verse 22, as this is not something which forms the subject of a command.

ואת יהושע צותי, “and I have commanded Joshua;” this is what has been written in Numbers 27,23: ויסמוך ידיו עליו ויצוהו, “he (Moses) placed his hands firmly upon him, and he commanded him.”