Midras Mikha 1:15: Midrash Tanchuma Buber, Aggadat Bereshit & Bereshit Rabbah

[(Gen. 38:1:) THAT JUDAH WENT AWAY < FROM HIS BROTHERS AND TURNED ASIDE TO A CERTAIN ADULLAMITE >.] This text is related (to Micah 1:15): I WILL YET BRING TO YOU ONE WHO SHALL DISPOSSESS YOU, < O INHABITANT OF MARESHAH; TO ADULLAM SHALL COME THE GLORY OF ISRAEL >.¹⁹Rashi on Gen. 37:35; see Gen. R. 85:1. R. Judah and R. Nehemiah differed. The one said: The tribal patriarchs married their sisters, since it is stated (in Gen. 37:35): THEN ALL HIS SONS AND DAUGHTERS²⁰According to R. Judah, the plural here shows that Jacob had more than one daughter. AROSE TO COMFORT HIM. And how many daughters were there? They were simply their < brothers' twelve > twin sisters. < A given brother's mother > bore twins at his < birth >, and he would marry her. Moreover, it says so about Benjamin (in Gen. 35:17): BECAUSE THIS ALSO IS A SON FOR YOU.²¹Gen. R. 82:8. "Because this is a son for you" is not stated, but BECAUSE THIS ALSO IS A SON FOR YOU, since his mother had < already > given birth to < his > twin sister. Ergo (in Gen. 37:35): THEN ALL HIS SONS AND DAUGHTERS AROSE…. Hence you learn that they married their sisters. But R. Nehemiah maintains: His daughters were his daughters-in-law. Since one's son-in-law is like his son, and his daughter-in-law, like a daughter, one does not refrain from calling his daughter-in-law his daughter.²²Gen. R. 84:21. Our masters have said: Judah, who was the eldest in his father's house, married a Canaanite. Thus it is written (in Gen. 38:2): AND JUDAH SAW THERE < THE DAUGHTER OF A CERTAIN CANAANITE >. And the prophet proclaims (in Micah 1:15): TO ADULLAM SHALL COME THE (HOLY ONE) [GLORY] OF ISRAEL. Ergo (according to Gen. 38:1-2): THAT JUDAH WENT AWAY < FROM HIS BROTHERS > AND TURNED ASIDE TO A CERTAIN ADULLAMITE < WHOSE NAME WAS HIRAH. AND JUDAH SAW THERE THE DAUGHTER OF A CERTAIN CANAANITE WHOSE NAME WAS SHUA. SO HE TOOK HER AND WENT IN UNTO HER >.

Chapter (63) 64: Torah [1] "And it came to pass at that time that Judah went down" (Genesis 38:1). Like it is said in scriptures: "I will yet bring you, O inhabitants of Mareshah" (Micah 1:15). The Holy One, blessed be He, said to Israel, "Even though I made a covenant with your father Abraham and told him to 'Arise, walk through the land' (Genesis 13:17), and I did what I promised him, and gave him all the land, as it is said, 'And the children came and possessed the land' (Nehemiah 9:24), and also 'I brought you into a land of fruitful fields' (Jeremiah 2:7), a land that is soft and full, yet you angered Me and came and defiled My land, etc." (Jeremiah 2:7). "What shall I do with you? Behold, I will bring the nations against you, and they shall drive you out of your land. I will yet bring you, O inhabitants of Mareshah" (Micah 1:15). This is because you did not listen to the words of Micah the Morashtite, who prophesied in the days of Hezekiah, King of Judah, etc. (Jeremiah 26:18). Therefore, this is what will be done to them: "The heir to Israel will come, and the glory of Israel will not be snuffed out" (Micah 5:1). When Israel went into exile, they were stripped and made to wear rags until they reached their destination. Their enemies stripped them of their clothing and left them naked, as it is written: "The glory of Israel will come to you forever" (Micah 4:5). A person's honor is in their clothing. If you don't believe this, consider what is written: "I will strip you of your clothes and leave you naked" (Ezekiel 23:26). They were ashamed to be seen naked, as it was embarrassing for one person to see the shame of another. Jeremiah also says: "All her splendor has departed" (Lamentations 1:6), which teaches us that they went out without clothing, and splendor is nothing but clothing, as it is written: "This is the generation that wears clothing" (Isaiah 33:1). Their officers were like deer (Lamentations 1:6). Just as these rams go one after the other, and each one's head is behind the back of his fellow, and he sees his own shame, so too did the Israelites see the shame of each and every one of them, but not their own shame, because they were stripped and in collars, until they arrived at eternity. Their enemies would strip them of their clothing and leave them naked, as it says, "until eternity the honor of Israel will come" (Micah 4:5). From the beginning, the tribe of Judah hinted to them that this is what would happen to them when they arrived at "World to come" [edit. actual word is 1. עדולם Adullam = "justice of the people. 2. a town of the Canaanites allotted to Judah and lying in the lowlands; site of the cave where David hid.]

“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.