What are the connotations of "Mizbach Adamah"?
Rashi #1: It means that the Mizbe'ach must be built on solid ground, and not on pillars or archways.
Ramban #1: It follows the prohibition against constructing silver and golden gods (Refer to 20:20:5:1).
Ramban #2: Refer to 20:20:5:2.
Seforno: All that is needed to worship Hashem is a Mizbe'ach of earth, and not temples of silver and gold and precious stones.
Moshav Zekenim: If so, why was it necessary to remove the ashes before they traveled (Bamidbar 4:13)? (I.e. it was filled with earth from the top. Before traveling, they removed the earth from the top. Automatically, all ashes on top were removed! Perhaps the Torah commands to remove the ashes of Korbanos by themselves, and the earth by itself
What is the significance of the word "Li"?
Rashi, Ramban and Targum Yonasan: When making the Mizbe'ach, one should do so specifically in honor of Hashem. 1
To sacrifice to Him on them in the Beis-Hamikdash and in the Mishkan and not to the demons in the field (Ramban, citing the Mechilta).
Must Shechitah of Korbanos be on the Mizbe'ach?
From what are "Olosecha" and "Shelamecha" comprised, if not from flock and cattle?
Rashi, Targum Onkelos and Targum Yonasan: "Flock" and "cattle" actually describe "Olosecha" and "Shelamecha" - as if the Torah had written 'Asher mi'Tzoncha umi'Bekorcha.'
What does the latter half of the Pasuk ("be'Chol ha'Makom Asher Azkir Es Sh'mi ... ") mean?
Rashi: It means that wherever Hashem allows His Name (Havayah) to be mentioned (exclusively), 1 He will come and bless Yisrael and rest His Shechinah with Yisrael.
Ramban (citing Ibn Ezra) and Seforno: With reference to the previous Pasuk - we do not need to come on to silver and golden mediums to obtain Hashem's blessings, because whenever we mention His Name, He will come personally to bless us. 2
Mishnas R. Aharon (4, p.28): The entire Torah is names Hashem, so one who engages in Torah mentions His name, and this brings Shechinah. This is why after the Churban, Hashem has only the four Amos of Halachah.