To form one Mishkan

The book of Genesis tells tale after tale of fraternal relationships gone awry. We begin with the worst case scenario: Cain kills Abel. Then Sarah becomes incensed when Ishmael is playing with Isaac, and he is banished; they reunite only for their father's funeral. Then Jacob buys Esau's birthright and acquires Esau's blessing, they enjoy one reunion, and don't see each other again until they must bury Isaac. Finally we have Joseph and his brothers - who sell Joseph into slavery. In this case, the entire family is reunited, everyone hugs and cries, Jacob and Joseph are gathered to their kin and חזק חזק ונתחזק.

There is a progress, of sorts, through Genesis; each fraternal conflict has a successively better outcome, but it is in Exodus that we finally see siblings dwelling together, by and large, in peace. I'm speaking of Amram's kids - Miriam, Moses, and Aaron.
Read the rest at The Reform Baal T'shuvah