שלום
The Temple and peace
וְשָׁפַט בֵּין הַגּוֹיִם וְהוֹכִיחַ לְעַמִּים רַבִּים וְכִתְּתוּ חַרְבוֹתָם לְאִתִּים וַחֲנִיתוֹתֵיהֶם לְמַזְמֵרוֹת לֹא־יִשָּׂא גוֹי אֶל־גּוֹי חֶרֶב וְלֹא־יִלְמְדוּ עוֹד מִלְחָמָה׃
And He shall judge between the nations, And shall decide for many peoples; And they shall beat their swords into plowshares, And their spears into pruninghooks; Nation shall not lift up sword against nation, Neither shall they learn war any more.
A mountain of learning
In both Isaiah and Micah, the nations do not come to conquer or to be conquered. They come to be taught, and they leave to make peace. The same oracle appears in both books almost word for word.
וְיָשְׁבוּ אִישׁ תַּחַת גַּפְנוֹ וְתַחַת תְּאֵנָתוֹ וְאֵין מַחֲרִיד כִּי־פִי ה׳ צְבָאוֹת דִּבֵּר׃
But they shall sit every man under his vine and under his fig-tree; And none shall make them afraid; For the mouth of the LORD of hosts hath spoken.
‘They shall not hurt nor destroy’
Isaiah's vision of the holy mountain ends in a world full of the knowledge of God. Rambam closes his entire code of law with this verse.
Rambam's restraint
Rambam insists the natural world will not change in the Messianic era; images like the wolf and the lamb are parables. The sages longed for that time not to rule over others, but to be free for Torah and wisdom, with no famine and no war.