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

September 18

These are indeed days the like of which no mortal eye hath ever seen. Blessed is he that attaineth thereunto and realizeth their full worth. "We had sent Moses with Our signs, saying unto him: 'Bring forth thy people from darkness into light and remind them of the days of God.'" (Qur’an 14:5) And these are in truth the days of God, could ye but know it. 
(Baha'u'llah, Gems of Divine Mysteries)