Musar su Deuteronomio 30:11

The Torah writes in connection with the Nazirite, כי נזר אלוקיו על ראשו, "for the crown of his G–d is on his head."Neither a נזיר nor a כהן, may defile himself through contact with a dead corpse, in order to retain his status as being קדוש, holy. The regulations that apply to the Nazirite however, are stricter than those that apply to the Priest. The Priest attained the status of holiness only by being anointed with holy oil, whereas the Nazirite attained this status merely through his vow. This needs explanation. Once we explain this, the introductory words of the Torah איש כי יפליא נדר לה', "if someone expresses the special desire to vow a vow of Nazirdom to G–d,” may also become clearer. The meaning of the word מופלא, is "hidden, concealed." A similar example in the Torah is Deut.30,11, "It is not concealed from you, not inaccessible."

We read in Deut. 30, 11-14: "Surely, this Instruction which I enjoin you this day is not too baffling for you, nor is it beyond reach. It is not in the heavens that you should say 'who among us can go up to the heavens and get it for us and impart it to us that we may observe it?' Neither is it beyond the sea that you should say 'who among us can cross to the other side of the sea and get it for us and impart it to us, that we may observe it?' No, the thing is very close to you, in your mouth and in your heart to observe it.' The verses above reveal all that I have written concerning observance as well as vicarious observance of the Torah laws, i.e. that everyone is obligated to fulfill all the 613 commandments. When there are some מצות that he is unable to fulfill in practice, there are ways in which he can acquire the merit of having practiced them.

I have discussed this matter in greater detail in my sermon delivered on the Sabbath before Rosh Hashanah in connection with Deut. 30,11. Isaac then represents the מדת הדין, meaning that he is on a spiritual level that enables G–d to be as exacting with him as He had envisaged at the very beginning, before He began to create the universe. He represents what is called ראשית המחשבה.