And now, if you will truly heed My voice and keep My covenant, you will become for Me a treasure among all the peoples, for Mine is all the earth. And as for you, you will become for Me a kingdom of priests and a holy nation (Exodus 19:5).
And it shall be, if you do not heed the voice of YHWH your God to keep and to do all His commands and His statutes that I charge you today, all these curses will come upon you and overtake you… The sojourner who is in your midst will rise up high above you and you will go down far below. He will put you in debt and you will not put him in debt. He will become the head and you will become the tail. And all these curses will come upon you and pursue you and overtake you until you are destroyed. For you will not have heeded the voice of YHWH your God to keep His command and His statutes which He charged you (Deuteronomy 28:43–45, cf. Zohar Ḥadash, 59b–60a).
“How fortunate are you, O Israel. When you act according to the will of YHWH no nation or tongue can dominate you. But when you do not act in accordance with the will of YHWH you are delivered into the hands of a lowly people, and not only a lowly people but into the power of the beasts of a lowly people” (BT Ketubbot 66b).
“Rabbi El’azar wept. He opened, saying, ‘Her sound will move like a snake… (Jeremiah 46:22). Now that Israel is in exile, She surely moves like a snake. When a snake bends its head to the dust and raises its tail, the tail dominates and strikes anyone in front of it. Who causes the tail to rise above, dominate, and strike? The head, which is bent low. Nevertheless, who controls the tail, and who propels its movements? The head—although it is bent to the dust, it conducts [the tail’s] movements. Therefore, now the other nations—who are attached to the tail—rise above, dominate, and strike, while the head is bent to the dust, as is said: Fallen, not to rise again, [is Virgin Israel] (Amos 5:2) [cf. BT Berakhot 4b]. Nevertheless, this head controls the tail and preserves it, as is said: They made me keeper of the vineyards (Song of Songs 1:6)—the other nations, who are the tail.
Rabbi Yehudah came and kissed his hands, and said, ‘If I had asked nothing in the world except for this, and gained it, it would be enough for me! For now I know how the other nations and their dominion are controlled. Happy is the share of Israel, of whom is written For Yah has chosen Jacob for Himself, Israel as His treasure (Psalms 135:4)’” (Zohar 3:119b).
“Rabbi Yitsḥaq said, ‘All the princes of the nations ascend or descend because of this one [Metatron]. When he ascends, the princes of the nations descend. When he descends, they ascend. All depends on the children of Jacob!’
Rabbi Yehudah son of Shalom said, ‘Good or evil comes to the world solely on account of the children of Jacob!’
A certain [Roman] hegmon came to Rabbi Abbahu and said, ‘The entire world should assemble against you as against this locust—to obliterate you from the world in a single instant! For if this nation does not worship its Lord, it is written: He will shut the heavens so that there will be no rain, and the earth will not yield her fruit (Deuteronomy 11:17). If she strays, the entire world is destroyed on her account!’
He replied, ‘But it is you who cause her to stray and not to follow the proper path!’ He said to him, ‘It is your sins that rouse us!’ Rabbi Yehudah said, ‘The hegmon spoke well’” (Zohar Ḥadash 28c, cf. BT Berakhot 17a).