Midrash sa Jeremias 29:11: Sifrei Devarim, Aggadat Bereshit & Bereshit Rabbah

(Devarim 11:26) "Behold, I set before you this day blessing and curse": Because it is written (Ibid. 30:19) "The life and the death have I set before you, the blessing and the curse," lest Israel say: Since the Holy One Blessed be He has set before us two ways, the way of life and the way of death, we can choose whichever we wish; it is, therefore, written (Ibid.) "and you shall choose the life, you and your seed." An analogy: A man is sitting at the crossroads, with two paths stretching before him, one, whose beginning is level and whose end is thorns, and one whose beginning is thorns and whose end is level. He apprises the passersby: This path whose beginning you see to be level — for two or three steps you will walk on level ground, and, in the end, on thorns. And this path whose beginning you see to be thorny — for two or three steps you will walk in thorns, and in the end you will walk on level ground. Thus did Moses speak to Israel: You see the wicked prospering — For two or three days they will prosper in this world, and in the end, they will be cast away, as it is written (Proverbs 24:20) "For there is no (good) end for the wicked one," and (Koheleth 4:1) "Behold, the tears of the oppressed (in Gehinnom)." And (Ibid. 5) "The fool folds his hands together (in contentment), and, (in the end) he eats his own flesh." And it is written (Proverbs 4:19) "The way of the wicked is pitch darkness." They see the righteous suffering in this world. Their end is to rejoice, viz. (Devarim 8:16) "to benefit you in your latter end." And it is written (Koheleth 7:8) "Better the end of a thing than its beginning." And (Jeremiah 29:11) "For I (the L-rd) know the thoughts that I think concerning you … to give to you a (goodly) end and a hope." And it is written (Psalms 97:11) "Light is sown for the righteous one," and (Proverbs 4:18) "The path of the righteous is like shining light."

[4] Another interpretation: Vision of Obadiah: What did Obadiah see as a reason to punish Edom? Rather, the Holy One, blessed be He, said, "Abraham used to feed fetuses and wayfarers, and Esau came and killed them, and he used to fill the caves with corpses, and Jezebel used to kill the prophets. Obadiah hid them in caves and sustained them, as it says, 'And it was when Jezebel was cutting off the prophets of the Lord, Obadiah took a hundred prophets and hid them in fifty caves and sustained them with bread and water' (1 Kings 18:4). The Holy One, blessed be He, said, 'Let Obadiah come, who fed the prophets in caves, and punish Esau, who killed people in caves.' Therefore it is said, 'The vision of Obadiah.' Another commentary: Esau circumcised his fathers, but he despised the circumcision and chose to remain uncircumcised. Obadiah, on the other hand, was uncircumcised and despised it, but he chose to be circumcised. The Holy One, blessed be He, said, 'Let Obadiah come, who despised circumcision and circumcised himself, and punish Esau, who circumcised his fathers and made himself uncircumcised.' Therefore it is said, "The vision of Obadiah." Another commentary: Esau sought to fulfill the wishes of his father, as it says, 'And Esau said in his heart, "Let the days of mourning for my father draw near"' (Genesis 27:41), but Obadiah honored one who was not his father, as it says, 'And behold, Obadiah was on the way, and Elijah met him, and he recognized him and fell on his face...' (1 Kings 18:7). The Holy One, blessed be He, said, 'Let Obadiah come, who honored one who was not his father, and punish Esau, who sought the death of his father.' [Obadiah 1:21] Therefore it is said, 'The vision of Obadiah, but for Israel, I have known his thoughts...' (Jeremiah 29:11).

“It was at that time; Judah descended from his brothers and turned to an Adulamite man, and his name was Ḥira” (Genesis 38:1).
“It was at that time; Judah descended from his brothers” – “Judah has betrayed, and an abomination has been performed…” (Malachi 2:11). [God] said to him: ‘You have denied, Judah; you have lied, Judah’ – “and an abomination has been performed in Israel” (Malachi 2:11).¹Judah is portrayed as having denied and lied in that he betrayed his status as a member of Jacob’s household by marrying a Canaanite woman (Matnot Kehuna). This is in accordance with the opinion of Rabbi Neḥemya (see Bereshit Rabba 84:21). ‘Judah has become profane’ – “for Judah has profaned the holy of the Lord that He loves” (Malachi 2:11).
“It was at that time.” “I will yet bring to you a dispossessor, inhabitant of Maresha; [the glory of Israel] will come as far as Adulam” (Micah 1:15) – the King and Holy One of Israel.²God will come to Adulam to punish Israel (Yefe To’ar). [Alternatively,] should the glory of Israel have “come as far as Adulam”?³In this clause the midrash interprets “the glory of Israel” to refer to Judah himself. This sentence is to be read rhetorically; was it really fitting for Judah to come to Adulam and to marry a Canaanite woman? (see Yefe To’ar). “Come as far as Adulam” – as it is written: “And turned to an Adulamite man.”
“It was at that time” – Rabbi Shmuel bar Naḥman began: “For I have known the thoughts” (Jeremiah 29:11) – the tribes were engaged in the sale of Joseph, Joseph was engaged in his sackcloth and his fasting, Reuben was engaged in his sackcloth and his fasting, Jacob was engaged in his sackcloth and his fasting, Judah was engaged in taking a wife for himself, and the Holy One blessed be He was engaged in creating the light of the messianic king: “It was at that time, Judah descended from his brothers.”⁴Judah married the daughter of Shua, thereby establishing the family that would produce the Messiah.
“Before she begins labor, she will give birth” (Isaiah 66:7) – before the first one who would enslave [Israel] was born, the ultimate redeemer was born. “It was at that time” – what is written prior to the matter? “The Medanites sold him to Egypt” (Genesis 37:36).⁵As the events that would lead to Israel’s enslavement in Egypt were just beginning to unfold, God was already planting the seeds of the ultimate redemption.