The building of the world, which is presently shattered, due to the fierce storms of the blood filled sward, is demanding the restoration of the Jewish [Israeli] nation. The building of the nation and the revealing of its spirit is one and the same, and is all connected with the building of the world, which has crumbled, and is eagerly awaiting the power of unity. All this is found in the soul of the assembly of the people of Israel [The Jewish People].
Rav Kook, Orot (Illuminations)

The people of Israel [The Jewish People] hold the secret of unification of the world.
Rav Kook, Orot HaKodesh

“The people of Israel [The Jewish People] are not a nation in the normal sense of the term, but rather the essence of the human ideal. They exist as a ‘society’ on all its meaning and are called a ‘nation’ by way of description because all societies of man are called by such a name.”
Rav Kook, “Iggrot Ha’Rayah Part II: Responsa 409”

The essence of creation and choice, and the correction of the corruption of the world, all this depends on the Jewish people [people of Israel].
Rabbi Yitzhak Isaac Hever, “Conversation With Yitzhak,” Part 2, “Likutim A”

The purpose of the Jewish people [the people of Israel] is to unite the world into one family.
From the Articles of Rav Kook, Whisper to me the Secret of the HaVaYah

The Jewish nation [nation of Israel] had been constructed as a sort of gateway by which the sparks of purity would shine upon the whole of the human race the world over.
And these sparks multiply daily, like one who gives to the treasurer, until they are filled sufficiently, that is, until they develop to such an extent that they can understand the pleasantness and tranquility that are found in the kernel of love of others. For then they will know how to shift the balance to the right, and will place themselves under His burden, and the scale of sin will be eradicated from the world.
Baal HaSulam, The Arvut (Mutual Guarantee), item 24

Israel became responsible for one another, for the correction of the world [—]… since everything depends on the people of Israel. As they correct themselves, all the other created beings will be drawn after them.
Rabbi Yehudah Aryeh Leib Alter, “Sfat Emet,” “Exodus,” “Parashat Yitro”

It is upon the Jewish [Israeli] nation to qualify itself and all the people of the world.. to develop until they take upon themselves that sublime work of the love of others, which is the ladder to the purpose of Creation.
Baal HaSulam | The Arvut (Mutual Guarantee)

The Jewish people [Israeli nation] should be a role model to the nations of the world.
Baal HaSulam, The Writings of the Last Generation, Part One