Well, I don't. The promise is to Abraham and his descendants. Now Israel is one of those descendants.
Oldest to youngest:
Ishmael (son, with Hagar)
Isaac (son, with Sarah)
Zimran (son, with Keturah)
Jokshan (son, with Keturah)
Medan (son, with Keturah)
Midian (son, with Keturah)
Ishbak...