Why did Moshe say "Bring them", and not 'Bring us'?
Rashi #1 (citing the Gemara in Bava Basra,119b, and the Mechilta): He prophesied that he would not enter Eretz Cana'an. 1
Rashi #2 (according to the Maharshal): It was the current generation (not just Moshe), who would not enter the Land, only their children - despite the fact that the sin of the Meraglim had not yet taken place.
Presumably without realizing it.
Why does the Torah use the word "Machon" and not 'Makom'?
Rashi (citing the Mechilta) and Targum Yonasan: To teach us that the earthly Beis-ha'Mikdash is exactly opposite Hashem's Throne. 1
Since the word "Machon" can be read 'Mechuvan' (exactly opposite - the dwelling of Hashem [Ibid.]).
Why the double expression "Tevi'emo ve'Sita'eimo"?
Seforno: Bring them to the land and entrench them there permanently - that they should never be exiled from it.
Targum Onkelos and Targum Yonasan: Bring them to the land and encamp them there (settle them down).
What does the Toah mean when it refers to "the Mikdash which Hashem's Hands established"?
Rashi #1 (citing the Mechilta): The fact that the Torah writes "Yadecha" (in the plural), indicates how dear the Beis-ha'Mikdash is in Hashem's Eyes - When He created the world, He created it with only One Hand, 1 yet the Beis-ha'Mikdash that He will build when He will reign Supreme over the entire world 2 He will build with Two Hands.
Rashi #2 (in Succah, 41a): It hints that the third Beis-ha'Mikdash 3 will descend from Heaven, fully built.