Why did Hashem not tell Avraham immediately where to go?
Rashi: So that people would not be able to say that Hashem surprised him suddenly and traumatised him, and that had he had time to think it over, he would have refused. 1
Seeing as Hashem did not actually inform Avraham that he had arrived at his destination, how did he know that he had?
Rashi, Ramban #1 and Targum Yonasan: He saw a cloud that had enveloped Har ha'Moriyah.
Ramban #2: He saw the land of Moriyah, which he recognized.
What is the significance of the word "me'Rachok"?
Seforno: Hashem enabled Avraham to see Har ha'Moriyah whilst it was still outside his range of vision, 1 and he understood himself that this was where the sacrifice would take place.