Yosef and the brothers meet, and Yehuda pleads on behalf of Biyamin. Rashi give a harsh reading of Yehuda’s words, saying that he is expressing his readiness to wage war on Yosef. The pshat -reading seems to suggest otherwise, but the idea of Yehuda facing off with Yosef plays out in later centuries- in the tensions between Kingdom of Yehuda and the House of Yosef. God warns that there will be a split, and during the time of Shlomo's son Rehavam, a descent of Yosef, Yerovam, arises as King of Israel. 

Is unity always ideal? Why is there a Divinely mandated kingdom split? We relate these questions to the Haftara for Vayigash, about the tree branches symbolizing the reunification of Yehuda and Yosef.