Thou hast known how grievously the Prophets of God, His Messengers and Chosen Ones, have been afflicted. Meditate a while on the motive and reason which have been responsible for such a persecution. At no time, in no Dispensation, have the Prophets of God escaped the blasphemy of their enemies, the cruelty of their oppressors, the denunciation of the learned of their age, who appeared in the guise of uprightness and piety. Day and night they passed through such agonies as none can ever measure, except the knowledge of the one true God, exalted be His glory.
(Bahá’u’lláh, Gleanings from the Writings of Bahá’u’lláh, p. 57)