Barren

In the readings I have now covered the Isaac/Rebekah story.
I thought it was a neat "God-moment" how the servant found Rebekah.
And how Rebekah reacted like Mary (or rather Mary reacted like Rebekah, lol) when told God's purpose for her.
I found in interesting that both Sarah and Rebekah were barren for parts of their lives. Isaac had to pray to get Rebekah to bear children. Jacob's wife Rachel will also be barren for a time. That's 3 generations of barrenness! I wonder what that means. Was it a spiritual curse?

The reading today was about how Esau gave up his birthright for a bowl of stew. How it is important that we think things through before making rash decisions.