What is the connection between this Pasuk and the previous Pesukim?
Rashi: 'You will only be considered wise in the eyes of the nations (when you study the words of the Torah) if you will not forget them and fulfill them correctly, but if you will make them crooked due to forgetfulness, they will consider you fools.
Ramban: Following the warning to keep all the Mitzvos, the Chukim and the Mishpatim, the Torah is now issuing a warning (a Mitzvas Lo Sa'aseh) never to forget Ma'amad Har Sinai, the source of all the Mitzvos, with everything that they saw and what they heard there - the thunder, the flashes of lightning, Hashem's Kavod and His Greatness, and how they heard His words coming from the fire. And then to pass all of this on to your children and grandchildren. 1
Ramban: And as the Pasuk goes on to explain, this is because the objective of Ma'amas Har Sinai was in order to learn to fear Hashem for all generations, until the end of time.
Why does the Torah see fit to issue a double warning and to add the word "Me'od"? Why is remembering Ma'amad Har Sinai so important?
Ramban: Before presenting the Aseres ha'Dibros, the Torah wants to impress upon us the fact that it is Hashem who gave us the Torah. Had we received it from Moshe Rabeinu - notwithstanding the fact that his Nevu'ah was consolidated with signs and wonders, in the event that a subsequent Navi or dreamer will arise and issue commands that clash with the Torah (that we heard from Moshe), and verify his words with a sign or a wonder, it will create a doubt in our minds as to the veracity of Moshe's words. But now that we received the Torah from Hakadosh-Baruch-Hu Himself, without a medium - borne out by what we saw and heard at Har Sinai, 1 we will have no problem in branding whoever tries to make any change in the Torah an imposter.
What is the significance of the words "ve'li'Venei Vanecha"?