Dvar Torah Prshas Va'eschanan

Liyluy nishmas Elchonon Tzvi ben R'Yisroel Menachem.........In perek Heh pesukim yud daled and tes vav it says "V'yom Hashvii shabbos la'Hashem Elokecha lo sa'aseh kol melachah atah uvincha uvitecha v'avdicha v'amascha... L'maan Yanuach avdicha v'amascha kamocha..Vzacharta ki eved hayissa b'eretz mitzrayim vayotziacha Hashem Elokecha misham b'yad chazaka u'bezroah netuya al ken tzivcha Hashem Elokecha la'asos es yom Hashabbos" The Ramban says that the reason that you should allow your eved to rest is so that you will remember that you were an eved and Hashem took you out of mitzrayim. Through doing a maaseh of allowing your avadim to rest,it you will be reminded of another time when you as an eved were given rest,and that is when HKBH took you out of mitzrayim. The Rosh Yeshivah Ztl explains, that it comes out based on this that allowing your eved to rest on Shabbos is a ben adam
 la'makom like eatin matzah or sitting in the sukkah.Which means that you have to be thinking when you allow him to rest that you are doing it to remember what Hashem did for you and not because its nice for the eved. However,it's mashma from the Ramban that there is another factor in the mitzvah of allowing your eved to work,and that is, for the good of your eved  because he writes that since you were an eved and Hashem freed you you have to allow your eved to rest.Meaning, since Hashem was nice to you,you should be nice to your eved. This would mean that you have to allow your eved to rest as a favor to him,but if the reason you allow him to rest is to remember what Hashem did for you then why do you need to have in mind the good of the eved? He answers,that the Ramban is not saying that the mitzvah in the Torah to allow your eved to rest is just going to somehow remind you that
 Hashem took you out of mitzrayim. Rather that through doing chesed to other people,you are margish (you feel)more the greatness of chesed,of being nice to people. By realizing the greatness of chesed,you me'mailah get a new understanding of what Hashem did for you by taking you out of mitzrayim.You come to recognize the true chesed that Hashem did for us.It comes out that you should allow your eved to rest as a favor to him,because through the chesed you do,your appreciation for chesed will be strengthened and your gratitude to Hashem as well. Sometimes people do so much for us,and we never realize it until much later when we do that same favor for somebody else and see what it entails. We should work on ourselves to give to others which will me'mailah cause us to have the correct hakaras hatov for the people that are there for us....... Good Shabbos