Ирмеяу 2:3 Каббала: Zohar, Ohr Ne'erav & Sha'arei Orah

There are high mysteries in this verse, and we friends wonder about them, for it says that Jacob lived instead of Yisrael, to wit 'And Israel lived.' For the name Jacob indicates smallness, and the name Israel indicates Mochin of greatness, while "and lived" alludes to the Light of Chayah, which is the Mochin of greatness. It should have said, 'And Israel lived.' How do we know that Yisrael indicates Mochin of Greatness? From the verse, "Yisrael is holy to Hashem" (Jer. 2:3), (Holy is an allusion to greatness). It also says, "Israel is My son, My firstborn" (Shemot 4:22), firstborn being an allusion to greatness. Rabbi Elazar, the son of Rabbi Shimon, said, Yet scripture says, "and he sold his birthright to Jacob" (Beresheet 25:33), for with the birthright, which is greatness, the name Jacob is mentioned.

Old man, old man!.Thou hast commenced to reveal a profound secret. What hast thou done?

However, no deed is done by the Lord but has its reason and its justice; and as in all other cases, so also in this. He to whom the Holy One has given a wife, and who has generated with her, is not like others who undergo transmigration. One who in this world truly and humbly endeavoured to make the tree fruitful, but who did not succeed in his attempt, is not to be placed in the same category with one who consciously and wilfully refused the duty of engendering children, so uprooting the tree, scattering its leaves, and wasting its fruit.