Rav Yaakov Kamenetzky in his sefer Emes L’Yaakov in Parshas Ki sovo uses this principle to answer a Rambam. The Rambam in Hilchos Bikurim cites the pesukim that a person must recite when he brings his first fruits to the mizbeach. The commentators ask that the last words of this recital conclude in middle of a possuk and this is against the dictum of stopping in a place that Moshe did not stop. Reb Yaakov answers that this ruling does not apply by such mitzvos, such as bikurim. It is only a concern when pesukim are being recited because of Torah.

He uses this principle to explain why a kohen is not required to recite the Priestly Blessing while reading from a Torah. There is a halacha that when one recites verses from the Written Law, he is prohibited from saying them “by heart.” The explanation is that that this halacha applies only when someone is reciting verses because of Torah but here they are being recited because of a mitzvah and therefore there is no requirement that these pesukuim should be read from a Torah.

This principle is somewhat troubling as the source for the halacha is the Gemora Brochos which is discussing the mitzva of reciting krias Shema. The Gemora states regarding this mitzva that if Moshe did not stop there, we cannot. How can these Acharonim say that this halacha only applies by Torah and not by mitzvos?

It would seem that this would be a proof to the opinion of the Keren Orah in Sotah and the Brisker Rav who maintain that the mitzva of reciting krias shema every day is actually a mitzva of “Talmud Torah.” The obligation is to recite portions of the Torah twice daily. Obviously there is a mitzva of accepting the yoke of Heaven by reciting these portions but the commandment of the Torah is to learn these portions once in the morning and once at night. This explains why the halacha of stopping where Moshe didn’t stop does apply.