Why does the Pasuk here mention "Beis Re'echa" before "Eishes Re'echa", and switch the order in Va'eschanan?
Ramban (citing the Ibn Ezra): The Pasuk here follows the logical order, where a man first builds a house and then gets married, where in Va'eschanan, it follows the way of young men, who want to marry first before building a house, or it follows the order of severity - since desiring another man's wife is more stringent than desiring his house.
What is the significance of "Lo Sachmod", the last of the Aseres ha'Dibros?
Ramban: Someone who does not covet what belongs to his friend will never damage his property, and will always fulfill his obligation to pay what he owes.
Moshav Zekenim: It says here Lo Sachmod, and it says below "Lo Sachmod Kesef v'Zahav Aleihem v'Lakachta Lach." Just like there, there is taking with Lo Sachmod, also here. Even though another verse forbids stealing, this is another Lav.
Why does it say here "Lo Sachmod", and in Devarim (5:18) it says "Lo Sis'aveh"?
Moshav Zekenim and Hadar Zekenim (13, both from Rambam Hilchos Gezelah 1:9-10): One transgresses Lo Sachmod through pressuring the owner to sell. One transgresses Lo Sis'aveh once he resolves in his heart how he will get it.
Moshav Zekenim citing R. Tam: People think that Lo Sachmod is without giving money, and Lo Sis'aveh is even if he gives money.
Why does it say in Devarim (5:18) "his ox and his field", and here it says only "his ox"?
Moshav Zekenim citing R. Tam: "Ox" includes field, like R. Yosi, who called his wife 'Beisi', and his ox 'my field.' 1
Moshav Zekenim: At the time of Matan Torah, they did not own fields. In Devarim, Moshe spoke to them after they took fields from Sichon and Og.
Riva: At the time of Matan Torah, they did not own fields. In Devarim, this was shortly before they would enter the land and get fields.
Moshav Zekenim: This is difficult. If so, it should suffice to say "Eshes Re'echa." Why does it say also "Beis Re'echa"?