February 15

Two of the most important volumes of Bahá’u’lláh’s writings date from this first period of exile, [Baghdad] preceding the declaration of His mission in 1863. The first of these is a small book which He named The Hidden Words. Written in the form of a compilation of moral aphorisms, the volume represents the ethical heart of Bahá’u’lláh’s message. In verses which Bahá’u’lláh describes as a distillation of the spiritual guidance of all the Revelations of the past, the voice of God speaks directly to the human soul… The second of the two major works composed by Bahá’u’lláh during this period is The Book of Certitude, a comprehensive exposition of the nature and purpose of religion. In passages that draw not only on the Qur’án, but with equal facility and insight on the Old and New Testaments, the Messengers of God are depicted as agents of a single, unbroken process, the awakening of the human race to its spiritual and moral potentialities. 
(From ‘Baha’u’llah’; A statement prepared by the Bahá'í International Community Office of Public Information, at the request of the Universal House of Justice and published in 1992)