וְזָרְחָ֨ה לָכֶ֜ם יִרְאֵ֤י שְׁמִי֙ שֶׁ֣מֶשׁ צְדָקָ֔ה וּמַרְפֵּ֖א בִּכְנָפֶ֑יהָ וִֽיצָאתֶ֥ם וּפִשְׁתֶּ֖ם כְּעֶגְלֵ֥י מַרְבֵּֽק׃
Ma per te che temi il mio nome, il sole della giustizia sorgerà con la guarigione nelle sue ali; e andrete avanti e giocherete come vitelli della stalla.
Zohar
Rabbi Yehuda asks, What is the meaning of, "by the terebinths" (Heb. אֵלוֹנֵי)? It meant to say 'his might,' as it is written, "by the hands of the mighty one of Jacob" (Gen. 49:24). The verse, "and he sat in the tent door" is as it is written, "Hashem, who (Heb. מִי) shall abide in Your tabernacle (or: 'tent') (Tehilim 15:1). The verse, "in the heat of the day" is as written, "But to you that fear My name shall the sun of righteousness arise with healing in its wings" (Malachi 3:20).
Reshit Chokhmah
Nevertheless, it seems in my humble opinion that if we look closely at his words “And TORAH is a remedy for all illnesses, as it says, ‘It shall be health to your navel’”, it means that the Torah is a cure whether for what is outside, which is the flesh, or for what is inside, which are the bones. “It shall be health to your navel” means the flesh, and “marrow to your bones” are the bones, and since it was specific in the ending of the verse it surely is the meaning. The reason is because the Torah is like a bandage to an injury that after the evil flesh deteriorated you can put a bandage to help grow good flesh, and so too the pain purifies the Klippah from the inside and outside. It turns out that this poor person is left with afflictions, bruises, and his bones are shriveled, and therefore he will need the potion of Torah, which is the “marrow to your bones” to moisten them, and as a bandage to the flesh from the outside, thus “It shall be health to your navel and marrow to your bones” (Proverbs 3:8). This is similar to what it says in the Zohar in Vayakhel (verse 331) regarding “But to you who fear My name the sun of righteousness shall arise with healing in its wings” (Malachi 3:20), which I explained in the Gate of Awe, the end of chapter 13.
Zohar
And the Light that will illuminate the righteous will shine. It has been stored before Him since the day that the world was created, as written, "And Elohim saw the light, that it was good" (Gen. 1:3). In the future, the Holy One, blessed be He, will revive the dead. It is written, "But to you who fear my name the sun of righteousness shall arise, etc." (Malachi 3:20), for then good will have the upper hand in the world, and that which is called evil will pass away from the world, as we said, then, the bodies that preceded the last one will be as if they never existed.