Midrash su Deuteronomio 18:15

(Fol. 90 b) Come, listen! (Deut. 18, 15) Unto him shall ye hearken; i.e., even if he say to you transgress one of the commandments of the Torah similar to that of Elijah at Mount Carmel, which was only for a while, one must obey. [Hence the court has the power to order things which are even against the Torah?] With a prophet, the case is different, because it is written, unto him shall ye hearken. Let us then infer from it for everything else? A measure [even though extraordinary but] to check something [lawlessness] is different. Come, listen! R. Eliezer b. Jacob said: "I have heard that the court may punish with stripes and even capital punishment, although it is not in accordance with the strict law, since it is not with the intention to violate the Torah, but merely to safeguard the Torah. So it happened in the days of the Greek government that one who rode on a horse on the Sabbath was brought before the court and was stoned. This was done not because he was worthy of such a punishment, but because the condition of that time required such a measure. And it also happened that another one was punished with stripes for not behaving in a decent manner, not because he was worthy of such a punishment, but because the condition of that time required such a measure." [Hence court may take measures even though against the Torah?] A measure to check something [lawlessness] is different.

(Exodus, Ibid. 16) "And they said to Moses: Speak, you, with us, and we will hear, (and let G d not speak with us, lest we die.") We are hereby apprised that they lacked the strength to receive no more than ten pronouncements, viz. (Devarim 5:22) "If we continue hearing the voice of the L rd our G d, we will die," but (Ibid. 6) you draw near," and we will hear. At that time, Israel merited the L rd's establishing prophets for them, as it is written (Ibid. 18:18) "A prophet shall I raise up for them, etc." I was destined to set up a prophet for them (later), but their merit preempted it, viz. (Ibid. 17) "And the L rd said to me: They have done well in speaking as they did" (viz. Ibid. 16). Happy are those in whose words the L rd concurs! And thus is it written (Numbers 27:7) "Rightly do the daughters of Tzelafchad speak," (Ibid. 36:5) "Rightly does the scribe of the sons of Yosef speak." Happy are those in whose words the L rd concurs! And thus is it written (Ibid. 14:20) "I have forgiven because of your (Moses') words.

(Devarim 18:15) "A prophet from your midst, from your brothers, such as I, the L-rd your G-d will establish for you": "from your midst" — not from outside Eretz Yisrael; "from your brothers" — not from others (i.e., gentiles). "will establish for you" — and not for idolators. How, then, am I to understand (Jeremiah 1:5) "A prophet for the nations have I made you (Jeremiah)"? For those (Jews) who deport themselves as the nations do.