And God spoke to Rebekah before her sons were born. God spoke before the boys had done anything either good or bad. God did this to show clearly that he himself was choosing one child. He was not choosing someone because of what that person had done. He himself decided who he would choose.
Romans 9:11
雙子 還沒有生下來，善惡還沒有做出來，只因要顯明上帝揀選人的旨意，不在乎人的行為，乃在乎召人的主。
羅馬書 9:11