Those arguing are both wrong

If divided, both sides to a difference are wrong; if united, they are both right

"During the days of Bahá'u'lláh some of the prominent teachers of the Cause in Persia were divided as to the station of Bahá'u'lláh and at last wrote to Him for arbitration. In answer Bahá'u'lláh said that if they were united both sides were right and if they were divided both were wrong. The Master often denied Himself any station just to maintain the unity of the friends for that was His primary object."

(From a letter written on behalf of Shoghi Effendi to the Spiritual Assembly of Yonkers, April 20, 1931, in Lights of Guidance, no. 1350)