וּפָנִ֣יתִי אֲלֵיכֶ֔ם וְהִפְרֵיתִ֣י אֶתְכֶ֔ם וְהִרְבֵּיתִ֖י אֶתְכֶ֑ם וַהֲקִימֹתִ֥י אֶת־בְּרִיתִ֖י אִתְּכֶֽם׃
E voltarei para vós, e vos multiplicarei, e aumentarei o vosso número, e confirmarei a Minha aliança convosco.
Akeidat Yitzchak
(1,2,3) Just as man is not allowed to enjoy nature's blessings without first reciting an appropriate benediction acknowledging G'd as the source, so the priests remind people of that fact when they say "may the Lord bless you." Constant reminders that G'd is the source of all blessings and well being are important. This too is the purpose of "they will place My name on the children of Israel and I will bless them." The priests' function is to keep Israel aware of this cardinal fact. The function of the priest in relation to G'd, is parallel to the aggadah about Moses assisting G'd in His task of tying the crowns to the letters of the Torah, that we mentioned earlier. The first part of the priests' blessing is essentially material in nature. The additional word "and may He preserve you," is the difference between human and Divine blessings. The former, however generous in nature, does not carry with it the guarantee that it will endure. G'ds blessings however, includes the blessing that it will endure. The second blessing revolves essentially around spiritual matters, the important feature being that the attitude of others towards you will be positive, generous, acknowledge your worth. The third section, "Peace," is relatively the most important of the blessings, as documented by many of the sayings of our sages. They teach that even in death, shalom, peace, is an indispensable attribute. "You will join your fathers in peace." (Genesis 15, 15) See also Jeremiah 34, 4, concerning the death of king Tzidkiyahu. We find a somewhat puzzling statement by Rabbi Eleazar Hakappor, who is quoted as saying "peace is great because even if Israel worships idols, as long as they have harmony, Satan does not touch them.” He bases himself on the verse in Hoseah 4, 17, "as long as the idol worshipping Ephrayim live in unity, leave them alone;" but it continues in chapter 10, 2, "when their heart is divided, now they will receive their punishment." How strange that those who destroy the fabric that binds them to their Creator by worshipping idols, should not also burst the fabric of harmony, peace? But the lesson is that the merit of maintaining harmony gives even sinners an extension before G'ds justice is executed. The three blessings then are 1) Provision of material needs including a healthy body. 2) Provision of the needs of the spirit and soul. 3) Assistance in establishing harmony between man and his Maker, which is true harmony. The tabernacle represents the totality of this world, a microcosm. The beriach hatichon, the central bolt joining all forty eight boards comprising the walls, are the thread shalom, i.e. "peace" that bonds everything together in harmony. When the Midrash says that when G'd created the world, He desired a dwelling down here, just as He has in the Heavens, the meaning is none other than that He wished to supervise and assist man's activities, just as He supervises all that goes on in Heaven. To that end, He endowed the world with blessings. Adam, unfortunately forfeited that relationship through his sin, and until the arrival of Abraham on the stage of history, the broken thread did not begin to mend. Finally, at the completion of the tabernacle, this thread had been fully restored. This is the reason the Torah records the blessings at this juncture. For this reason also, the Midrash talks about Moses hearing three voices. He called the first voice hadar, to paraprase material well being. He called the second voice naeh, to parapharase spiritual and mental well being. The third voice he called meshubach, "choice," since it is the crowning achievement of all. Moses was anxious to have G'ds message spelled out. G'd obliged, saying "I speak shalom, I harbour no ill feelings against My children." (Psalms 85,9.) Rabbi Joshua ben Levi says that there is no need at all to quote a verse from the book of Psalms, since the verse in the Torah is perfectly adequate. Since the Torah tells us about blessings, and continues with the line "it was the day the tabernacle had been completed," the word va-yehee, it was, always refers to the reestablishment of a situation that had existed at one time, but had been interrupted.
Akeidat Yitzchak
B) Concerning Israel, G-d does not wait until major problems require His personal intervention, but He displays constant concern and supervision. "May the Lord lift His countenance to you," or "I will turn towards you." We are informed of situations when G-d deliberately failed to intervene on our behalf. "I will turn My face away from them."
Duties of the Heart
Another reason is that the purpose of reward in Olam Haba is essentially clinging to G-d, and drawing near to His supernal light, as written "your righteousness will go before you, the glory of G-d will gather you in" (Yeshaya 58:8), and "the wise will shine like the radiance of the firmament" (Daniel 12:3), and also, "To bring back his soul from the pit (i.e. Gehinom see below Tov Halevanon), to be enlightened with the light of the living" (Iyov 33:30). And no one can reach there except he who the Creator finds favor in, and the favor of the Creator is the root of the reward, as written "his anger is but a moment, in His favor is life" (Tehilim 30:6). And there are hints in parsha bechukosai that pleasing the Al-mighty [is the greatest reward], this is what is written "My soul will not abhor you" (Vayikra 26:11), and "I will turn to you and be unto you a G-d and you will be unto Me a people" (ibid, 26:9).