דבר אל בני ישראל ואמרת אלהם, "speak to the children of Israel and say to them, etc." Our verse repeated the form of address Moses was to use by calling it both the harsh דבר "speak" as well as the softer ואמרת, "and say." Why is that? Furthermore, why did the Torah switch to indirect speech when discussing the laws pertaining to a Nazirite? Perhaps the Torah wanted to address two kinds of Nazirite, the one kind being superior to the other. We learned in Nedarim 9 that Shimon the Just said that in all his years as High Priest he had only once eaten the guilt-offering of a Nazirite who had become ritually unclean during the term of his Naziriteship whose motivation for becoming a Nazirite he approved of. The Nazirite in question had described to him that he became a Nazirite as a means to fight off his evil urge. Concerning the Naziriteship of people similarly motivated the Torah used the term ואמרת, whereas concerning a Nazir who was motivated by less noble considerations the Torah used the term דבר when detailing the rules he had to observe. This is also why the Torah speaks of נזיר להזיר instead of merely saying להזיר לה׳. The Torah wanted to hint it speaks of two kinds of נזירות. The word נזיר refers to most kinds of Nazir, whereas the expression להזיר לה׳ refers to the Nazirite who is highly motivated such as the Nazirite mentioned by Shimon the Just.

וטמא ראש נורו, and he defile his consecrated head, etc. Both the letter ו in the word וטמא as well as the word ראש appear superfluous in our verse. The meaning may be that even if the ritual impurity contracted by the Nazirite was unintentional, not only does his body become ritually impure but also the hair on his head, as the Torah refers to his hair as "the crown of G'd which is on his head."

Another detail which is revealed by this wording is that not only does the Nazirite have to make up the days following his becoming ritually impure, but even the days which he counted in purity are not accounted for him and he has to go back to square one. This is confirmed by the words והזיר לה׳ את ימי נזרו in verse 12 where the Torah specifically states that the days he observed prior to becoming defiled become void. The reason the Torah says once more כי טמא נזרו, that he defiled his Naziriteship, is intended to prevent us from making the error of thinking that he loses only the day on which he became ritually impure, i.e. the beginning of Naziriteship. The words והימים הראשונים reveal that when such a person has contracted impurity lasting not only one day but a minimum of two days he loses not only these two days but all the days he had already counted. It is what is known as גזרת הכתוב, i.e. the Torah did not bother to explain its reason for this ruling.

דבר אל אהרון ואל בניו, "speak to Aaron and his sons, etc." Why did the Torah repeat the word לאמור in this verse? Perhaps the Torah was afraid that the blessing described here was something that the priests could pronounce but were not obligated to pronounce. The Torah wanted to make sure that although the word כה at the beginning might be construed as something to be performed voluntarily, i.e. "if you bless you shall keep to this formula," the priests should know it is a positive commandment to bless the Israelites. The repeated use of the word לאמור may also mean that the commandment did not only apply to Aaron and his sons but to the priests in all subsequent generations. There is also an implied compliment to the priests here, i.e. the priests are privileged by G'd to transmit His blessing to the people by pronouncing G'd's wording.

יברכך וישמרך. "May the Lord bless you and preserve you." The order of 1) the blessing, 2) preserving the people who received the blessing, means that the degree of שמירה, protection, will be commensurate with the extent of the blessing previously received. Moreover, there is an implication here that the blessing will be so comprehensive that G'd has to make a special effort that all of it will be preserved. The wording יברכך may also imply that there should be no negative side effects to this blessing such as is referred to in Deuteronomy 8,12: "lest you eat, become sated etc…. and become haughty, forgetting the Lord your G'd."

יאר ה׳ פניו, "May the Lord make His face shine upon you." This means that there should not be a "curtain" dividing between Israel and their Father in Heaven.

ויחנך, "and be gracious unto you." Please refer to what I have explained on the meaning of the word חן in my commentary on Genesis 39,21, "G'd was with Joseph and he caused him to enjoy grace, etc."

ישא ה׳ פניו אליך, "May the Lord lift up His countenance upon you, etc." This means that in the event the deeds (sins) of the Israelites have erected some kind of barrier between them and G'd that G'd should lift this barrier and remove it. וישם לך שלום, "and may He grant you peace." The meaning of the word "peace" or "harmony" is the reverse of every kind of separation and fragmentation. Anyone examining the word carefully realises that the concept it represents is the foundation our world is built upon, the force which ensures that the "higher" world and our "lower" world can co-exist successfully. This is the mystical dimension of the words: "and they shall put My name upon the children of Israel," and the concluding words "and I will bless them."