It was said unto her, The elder shall serve the younger.
Berean Study Bible (BSB) - Romans 9:12 >not by works but by Him who calls, she was told, “The older will serve the younger.”
Textus Receptus (TR) - Romans 9:12 >ἐρρήθη αὐτῇ ὅτι Ὁ μείζων δουλεύσει τῷ ἐλάσσονι.