Genesis 25 says these twin sons of Rebekah even struggled against each other in their mother's womb
In another tradition, all the women would go down to fill their jars with 
water from the spring, ... She was appointed for Isaac while still in her mother's 
womb and therefore, even though she did not know who he was, she consented
... [DOC] [TLE] Jacob and Esau - Wikipedia [PAR] The Book of Genesis speaks of the relationship between Jacob and Esau, 
focusing on Esau's ... And the Lord said unto her, Two nations are in thy womb, 
and two manner of ...