Jews will regain their ancient glory if they accept Baha'u'llah

"...If the Jews study the teachings they will find in them the hopes and aspirations that they have always cherished. Bahá'u'lláh bears a wonderful message to the Jews and many of them have come to appreciate it and are active in carrying it to others of their race. Through Bahá'u'lláh, the Master tells us, they shall regain their ancient glory and become loved by all the people of the whole world."

(From a letter written on behalf of Shoghi Effendi to an individual believer, June 14, 1932)