Parshas Vaes'chanan

Liyluy Nishmas Elchonon Tzvi ben R' Yisroel Menachem, Zekaini Moiri R' Baruch Moshe Aryeh ben Harav Zev Yehuda, my cousin Zev Yehuda ben Rav Shmuel Mrdechai, Avraham ben R' Yitzchok Zev, R' Dovid Meir ben Rav Shmuel......

In perek dalid posuk beis "Lo sosifu al hadavar asher anochi mitzave eschem v'lo sigriu mimenu lishmor es mitzvas Hashem elokeichem asher anochi mitzave eshchem." "You shall not add to the word that I command you , nor shall you subtract from it to keep the commandments of Hashem your God that I command you"

Many mefarshim ask the seemingly obvious question. It is understandable why the Torah says one should not subtract from the Mitzvos Hashem commanded, but what is wrong with adding onto the Torah? Perhaps by adding on one can be mikayim the Torah on an even more chumradik level.

Rav Yaakov Neiman ztl explains, that every single person in Klal Yisroel has to understand that the Torah was giving to us straight from Hakadosh Baruch Hu. He is the one who wrote it and gave the mitzvos, mishpatim, and chukim. That being said and understood everyone is obligated to believe that it was given b'shleimus, perfect and complete. "Toras Hashem Temima". The Torah is complete without even one tiny minuscule mistake. If one were to add on to the Torah and try to be more "machmir" and more holy then what he is in fact showing is that he does not believe that the Torah was given from Hashem. If someone tries to be "frummer" than the Ribono shel olam they are actually being "koifer b'ikar".

Don't be frummer than the Ribono Shel Olam. My grandfather Harav Abba Zalka Gewirtz shlita always says these words and follows with the following Chazal. In the maaseh of Nadav and Avihu and the aish zara the Ohr Hachaim is mashma that what Nadav and Avihu did wrong was that they brought a Karbon that Hashem had not told them to bring. They did what Hashem asked and then some and that is why they were chayiv misa.

 Its important to keep the Torah and follow all that Hashem commands, but that's is where it ends, all that Hashem commands. When people start trying to be holier than that and more machmir, its not chasidus or ultra orthodox, its kfira, it's its own religion. The Torah was given to us straight from Hashem complete and perfect and that is how we are expected to keep it and follow it.
 Good Shabbos