וַיֹּ֨אמֶר אֱלֹהִ֤ים ׀ לְיִשְׂרָאֵל֙ בְּמַרְאֹ֣ת הַלַּ֔יְלָה וַיֹּ֖אמֶר יַעֲקֹ֣ב ׀ יַעֲקֹ֑ב וַיֹּ֖אמֶר הִנֵּֽנִי׃
밤에 하나님이 이상 중에 이스라엘에게 나타나시고 불러 가라사대 야곱아 야곱아 하시는지라 야곱이 가로되 내가 여기 있나이다 하매
Zohar
Tosefta Why is "Noah Noah" (Gen. 6:9) written twice? Each and every righteous person in the world has two spirits. One stays in this world, while the other is in the World to Come. And so we find that the Holy One, blessed be He, named all the righteous twice: "Moses, Moses" (Ex. 3:4), "Jacob, Jacob" (Gen. 46:2), "Abraham, Abraham" (Gen. 22:11), "Samuel, Samuel" (I Shmuel 3:10) with the exception of Isaac. He is not named twice because when he approached the altar to be sacrificed, the soul that was within him in this world left him. And because it is said of Abraham, "blessed are You who resurrect the dead", so only the soul of the World to Come was returned to him. And that is why you shall find that the name of the Holy One, blessed be He, was not unified (on any righteous person in his lifetime). It was unified only on Isaac, because he was already considered as dead. He was like those who pass away from this world. The verse therefore states: "Behold, He puts no trust in His holy ones" (Iyov 15:15) because He does not unify His name on the righteous during their lifetimes.
Sha'arei Kedusha
This is also the meaning of those verses that relate to the righteous, in which their name is doubled. For example,879Genesis 22:11 “Avraham, Avraham,” and,880Genesis 46:2 “Yaakov, Yaakov,” and881Exodus 3:4 “Moshe, Moshe.” That is, one of these names corresponds to the aspect of the root that remains above in adhesion to the tree, and this aspect is called the flow from above (Mazal) of a person. This is as our sages, of blessed memory, related,882Talmud Bavli, Menachot 29b that Moshe saw the flow from above (Mazal) of Rabbi Akiva sitting and expounding the thorns of the letters. For, it is from there that the beneficence flows to the branch that descended to manifest in the body.