משך חכמה — וזאת תורת הנזיר... יביא אתו

Q — Why does the Torah write "יביא אתו" — using the hifil to say the nazir brings HIMSELF, requiring a derashah of R' Yishmael's "שלשה את-ים"?

A — The Torah does not fix the LENGTH of nezirut because its purpose is "לגדור עצמו מהתאוות והגאוה והמותרות" — and the time required is unique to each person. How does a nazir know he has succeeded? When he can look at HIMSELF the way he would examine someone else — "כשהוא מסתכל על עניני עצמו כמביט על מפעלות אחרים" — free of self-bias. The verse therefore says "יביא אתו," hinting that the moment to end nezirut is the moment one can relate to oneself as if to another.