וְאֶת־יְהוֹשׁ֣וּעַ צִוֵּ֔יתִי בָּעֵ֥ת הַהִ֖וא לֵאמֹ֑ר עֵינֶ֣יךָ הָרֹאֹ֗ת אֵת֩ כָּל־אֲשֶׁ֨ר עָשָׂ֜ה יְהוָ֤ה אֱלֹהֵיכֶם֙ לִשְׁנֵי֙ הַמְּלָכִ֣ים הָאֵ֔לֶּה כֵּֽן־יַעֲשֶׂ֤ה יְהוָה֙ לְכָל־הַמַּמְלָכ֔וֹת אֲשֶׁ֥ר אַתָּ֖ה עֹבֵ֥ר שָֽׁמָּה׃
И я повелел Иисусу в то время сказать: 'Твои глаза видели все, что Господь, Бог твой, сделал с этими двумя царями; так поступит Господь со всеми царствами, куда ты идешь.
Or HaChaim on Deuteronomy
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.
Rabbeinu Bahya
Chizkuni
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.”