What is the connection between this Pasuk and the previous one?
Seforno: After warning about honoring the upper strata of society, the Torah warns against denigrating the lower segment of the people.
What is the Mitzvah of "Lo Sonu"? What does it entail?
Rashi and Targum Yonasan: It refers to Ona'as Devarim - hurting a Ger verbally. 1 One should not, for example, say to him that yesterday he worshipped idols and now he is coming to study the Torah that was given by the Almighty!
Seforno: It means that one should not hurt a Ger even verbally (with Ona'as Devarim). 2