What is the meaning of "Yedaticha", and from when did Hashem do so?
Rashi #1: It is from the days of Adam ha'Rishon. He showed to him every generation and its Nevi'im (Seder Olam 30).
Rashi #2: I said about you to Moshe "Navi Akim Lahem
Radak: The same applies to every person! Rather, this is connected with "uv'Terem
What is the meaning of "Etzarcha"?
Rashi: It is an expression of [making] a form.
Moreh ha'Nevuchim (2:32) says that every Navi must be prepared for prophecy from his formation. Why was this said only regarding Yirmeyah?
Radak: We can say that Hashem knew that Yirmeyah would refuse Hashem's mission, therefore He informed him that he was prepared for Nevu'ah from the womb, to strengthen his heart to do Hashem's mission 1 .
Malbim: This is needed for one whose Nevu'ah is for his own need, to complete his knowledge of Hashem and supreme understanding. This needs (a) a blend of good Midos at the time of conception, and powers of intellect and imagination. Ten natures of the child come from his parents (Eduyos 2:9). (b) He must choose good deeds, Kedushah and separation. However, a Navi sent from Hashem to chastise nations, if Hashem does not find a person prepared, He picks a person who is good in His eyes, and prepares him for Nevu'ah via changing his nature and helps him make proper choices, to attain the desired end. This explains the Nevu'ah of people such as Gid'on and Mano'ach 2 . Their Nevu'ah was not due to their merit, rather, due to the need of the Influencer. Hashem told Yirmeyah that He prepared [his nature] from the womb; preparation via choice is not needed.
Radak: Also Moshe [initially] refused Hashem's mission, and Hashem did not say so to him! Hashem gave to him a great sign to strengthen his heart - the bush burns, but is not consumed, and the sign to do in front of Pharaoh. Or, Moshe was a great Chacham, and already knew that he was prepared for prophecy.
I.e. according to the opinion that Mano'ach was an ignoramus. There is no question according to the opinion that he was Gedol ha'Dor (refer to Shoftim 13:2:1:1, 13:11:1:2). (PF)
There are two other verses that say "uv'Terem". What is the significance of this?
Ba'al ha'Turim: The other verses are "uv'Terem Yikrav Aleihem" (Bereishis 37:18 - Yosef's brothers plotted to kill him) and "uv'Terem Yisnagfu Ragleichem" (below, 13:16). Due to this sin (Mechiras Yosef) came exiles, and the feet were sullied.
What is the meaning of "Hikdashticha"?
Rashi: I designated you for this.
Radak: It is an expression of Kedushah.
Who are "la'Goyim"?
Rashi citing Sifri Shoftim 175: They are Yisrael, who acted like Goyim. "Navi mi'Kirbecha
Emek ha'Netziv (on the Midrash, 31 according to his numbering): We find Nevi'im who prophesized only for Goyim, e.g. Nachum and Ovadyah. They prophesized also for Yisrael, just those were not written, for they were not needed for all generations (Megilah 14a says so about a different matter).
