I am sorry Kayaker, but I have no idea where you are coming from with these ideas above. The only thing I detect is that you are trying to defend the Church of Paul that still to this day promotes the Pauline policy of Replacement Theology.
The replacement theology in those days was that Messiah had to be a descendant of Judah via his Canaanitess wife (Genesis 38:1, 2; 1Chronicles 2:3). Jesus was a descendant of Judah and his daughter-in-law Tamar (Matthew 1:3, Luke 3:33) in a relationship contrary to Leviticus 18:15 KJV, Leviticus 20:12 KJV, Leviticus 21:7, 9, 13, 14. According to Levitical law, Jesus couldn't be Messiah.
The NT is quite clear that Jesus was arrested and charged with the political cause of insurrection to proclaim Jesus as king of the Jews at the entrance of Jerusalem which at the time was a Roman province. (Luke 19:37-40)
Indeed, and Pilate found nothing to worthy to put Jesus to death: Luke 23:13, 14, 15. Who was that "untoward generation" responsible for instigating the crucifixion, then (Acts 2:22, 23, Acts 2:40 KJV)? They weren't Israelite Jews, Ben: John 8:33 KJV, John 8:37 KJV, John 8:39 KJV. Those circumcised non-Israelite instigators were "Abraham's seed" (John 8:33 KJV, John 8:37 KJV) being descendants of Judah via his Canaanitess wife (Genesis 38:1, 2; 1Chronicles 2:3). Judah's father-in-law was Shuah, one of "the children of Abraham" (Genesis 25:1, 2, 3, 4). Well, Jesus didn't seem to think that "untoward generation" (Acts 2:40 KJV) were "Abraham's children" either, btw (John 8:39 KJV).
Abraham only had two "sons" (Genesis 25:9 KJV, Galatians 4:22 KJV), and Judah's Canaanite father-in-law (Genesis 38:2) wasn't as "son" of Abraham... Shuah was one of Abraham's mamzerim progeny via his Canaanite wife, Keturah (Deuteronomy 7:3, Deuteronomy 23:3 KJV). Therefore, Judah's Shelanite progeny (Genesis 38:26 KJV, Numbers 26:20) via his Canaanitess wife were also mamzerim (Deuteronomy 23:2 KJV). Jesus was a descendant of Judah and his daughter-in-law, Tamar (Matthew 1:3 KJV, Luke 3:33). That was the quandary of Jesus' day, Ben: Would Messiah be a descendant of Isaiah's Messianic progenitor (Isaiah 65:9) via his Canaanitess wife, speaking of endless genealogies? Or, would Messiah arrive via Judah's daughter-in-law, Tamar?
I do not understand why you are still speaking about a split of Judah after the split between Israel and Judah. This is in the Tanach but not that which you are talking about.
Judah's surviving Shelanite progeny (Numbers 26:20) were conceived in a forbidden marriage as noted in Deuteronomy 7:1, 2, 3, and corroborated by Ezra some 1,400 years later in Ezra 9:1, 2, as being a "great trespass" in Ezra 9:7 KJV. How then do you NOT perceive a split in Judah? How do you 'legitimize' Judah's Shelanite progeny of a forbidden marriage with particular emphasis on Deuteronomy 7:3 KJV? Jesus' arrival (John 3:1, 2) 'legitimized' the fatherless (Genesis 38:26 KJV) lost sheep Pharzites (and Zarhites, Genesis 38:29, 30) from whom Jesus descended (Matthew 1:3 KJV, Luke 3:33), and to whom Jesus was sent (Matthew 10:6 KJV, Matthew 15:22, 23, 24).
BTW, to make things short, in spite of your self-identification of Jewishness, I found nothing Jewish in this post of yours above. Please, no offense meant.
No offense taken in the least, Ben... such is clearly not a typical theme in your character. Does one have to have a particular ancestry to be called a "Jew" in you circles? I've been cut, and I study the Books of Moshe. My adoption papers, being an heir to God's promises to Abraham, were signed in Jesus' authentic Pharzite-Israelite Jewish blood. When I 'put on Christ', I became an heir counted among God's chosen Israelite Jews noted in Deuteronomy 7:6, 7, 8, 9, 10. Were you "born" a Jew? Or does one become a "Jew" following the Talmud?
Again, Ben: How do you 'legitimize' Isaiah's Messianic progenitor's (Isaiah 65:9 KJV) mamzerim progeny (Deuteronomy 23:2 KJV) via his Canaanitess wife (1Chronicles 2:3) conceived in a forbidden marriage contrary to Deuteronomy 7:3 KJV, and Ezra 9:7 KJV? I've Scripturally corroborated THEY were the ones who instigated Jesus' crucifixion, not the Israelite Jews!
kayaker