“Recite ye the verses of God every morn and eventide.” (Bahá’u’lláh, ‘The Kitáb-i-Aqdas’)

January 21

Consider the former generations. Witness how every time the Day Star of Divine bounty hath shed the light of His Revelation upon the world, the people of His Day have arisen against Him, and repudiated His truth. They who were regarded as the leaders of men have invariably striven to hinder their followers from turning unto Him Who is the Ocean of God's limitless bounty. ... 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. 
(Baha’u’llah, ‘Gleanings from the Writings of Bahá'u'lláh’; The Compilation of Compilations vol. I, Crisis and Victory)