Parshat Vayelech: Go And ...
(א) וַיֵּ֖לֶךְ מֹשֶׁ֑ה וַיְדַבֵּ֛ר אֶת־הַדְּבָרִ֥ים הָאֵ֖לֶּה אֶל־כָּל־יִשְׂרָאֵֽל׃ (ב) וַיֹּ֣אמֶר אֲלֵהֶ֗ם בֶּן־מֵאָה֩ וְעֶשְׂרִ֨ים שָׁנָ֤ה אָנֹכִי֙ הַיּ֔וֹם לֹא־אוּכַ֥ל ע֖וֹד לָצֵ֣את וְלָב֑וֹא וַֽה' אָמַ֣ר אֵלַ֔י לֹ֥א תַעֲבֹ֖ר אֶת־הַיַּרְדֵּ֥ן הַזֶּֽה׃
(1) Moses went and spoke these things to all Israel. (2) He said to them: I am now one hundred and twenty years old, I can no longer be active. Moreover, the LORD has said to me, “You shall not go across yonder Jordan.”

An ancient Heb. ms. and the Septuagint read: “When Moses had finished speaking …”; cf. 29.1.

וילך. הלך אל כל שבט ושבט להודיע שהוא מת שלא יפחדו וחזק לבם בדברי יהושע על כן כתוב אחריו ואתה תנחילנה אותם ולפי דעתי כי אז ברך השבטים ואם ברכותיהם מאוחרות במכתב:

went He went to each tribe, to inform them that he was going to die, so that they would not be frightened, and to hearten them with respect to Joshua (this is the reason for the passage which immediately follows: “… you will divide it among them” [: 7]). It is also my belief that this is when Moshe blessed the tribes, even though it is recorded later [cf. 33: 1 ff .].

וילך משה התעורר לזה כמו וילך איש מבית לוי. וילך ויעבוד ודומיהם. וזה שאחר שהשלים עניני כריתת הברית התעורר לנחם את ישראל על מיתתו כדי שלא יערבבו שמחת הברית הראויה להם להורות על היותם מקבלים הברית בשמחה על דרך ישמח ישראל בעושיו כאמרו וזבחת שלמים ואכלת שם ושמחת לפני ה' אלהיך:

וילך משה, he was self-propelled, just as was Amram, Moses’ father who married his aunt Yocheved, daughter of Levi, and almost certainly many years his senior. (Exodus 2,1) Another of many uses of the word וילך meaning that the person described acted of their own initiative is found in Deut. 17,3 where the Jewish idolater described had not been seduced by anyone. After having concluded the matter of the covenant between G’d and this second generation of Israelites many of whom had not been born at the time of the Exodus, Moses now proceeds to comfort the people over his impending death. He does so in order that the joy over G’d having concluded this covenant with them should not be turned into sorrow over the prospect of his impending passing from the scene. Rejoicing over having been found fit to become a party to such a covenant is something natural, the psalmist in Psalms 149,2 speaking of Israel rejoicing with or over its Maker. Being in G’d’s presence, such as here, is always a joyful experience, as is offering sacrifices to Him, as we know from Deut. 27,7.when the occasion was to mark the erecting of the stones after the successful crossing of the river Jordan.