While I know nothing of the Testament of the Patriarchs (thanks Google... ) I do have some thoughts on why Paul was a Benjamite.
Benjamin is the bridge between Judah and Joseph. He was then and is even now, though more hidden. Consider:
-Benjamin, son of Rachel, was accepted and protected by Judah in Genesis while Joseph was in Egypt. Judah's pledge to his father, Jacob, to protect Benjamin extends even to this day.
-Benjamin was the first to recognize Joseph and was the 'instrument' by which Joseph tested and revealed himself to his brothers.
-The covenant between Benjamin and Judah was secured in Jonathan and David.
-The house of Israel, aka house of Joseph, aka Ephraim, aka Israel (context determines if the passage is talking about all Israel or just the Northern Kindgom ), aka northern Kingdom, was ruled by Jeroboam and his descendants, the tribe of Ephraim, son of Joseph.
- Ephraim territory and Judah territory was interposed by... Benjamin territory.
- The Temple, though in Jerusalem, sat on Benjamite land.
- Today, in Israel, the only tribal territory with identifiable borders is Benjamite.
Now, my strong suspicion is that those today, of Messianic Judaism, who are Jews and know Yeshua/Jesus are of Benjamin. Like their father, they are in covenant with and under the protection of Judah, but recognize 'Joseph' and in many cases, the emerging house of Israel. ( I've written a book on this complex topic that is woven all the way through the fabric of Scripture from Genesis to Revelation and is extremely relevant prophetically in our time.)
Paul's role of restoring the two houses of Israel is exactly the role of Benjamin. Bridge!
Benjamin is the bridge between Judah and Joseph. He was then and is even now, though more hidden. Consider:
-Benjamin, son of Rachel, was accepted and protected by Judah in Genesis while Joseph was in Egypt. Judah's pledge to his father, Jacob, to protect Benjamin extends even to this day.
-Benjamin was the first to recognize Joseph and was the 'instrument' by which Joseph tested and revealed himself to his brothers.
-The covenant between Benjamin and Judah was secured in Jonathan and David.
-The house of Israel, aka house of Joseph, aka Ephraim, aka Israel (context determines if the passage is talking about all Israel or just the Northern Kindgom ), aka northern Kingdom, was ruled by Jeroboam and his descendants, the tribe of Ephraim, son of Joseph.
- Ephraim territory and Judah territory was interposed by... Benjamin territory.
- The Temple, though in Jerusalem, sat on Benjamite land.
- Today, in Israel, the only tribal territory with identifiable borders is Benjamite.
Now, my strong suspicion is that those today, of Messianic Judaism, who are Jews and know Yeshua/Jesus are of Benjamin. Like their father, they are in covenant with and under the protection of Judah, but recognize 'Joseph' and in many cases, the emerging house of Israel. ( I've written a book on this complex topic that is woven all the way through the fabric of Scripture from Genesis to Revelation and is extremely relevant prophetically in our time.)
Paul's role of restoring the two houses of Israel is exactly the role of Benjamin. Bridge!