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

January 17

Both Arabic and Persian are laudable. That which is desired of a language is that it convey the intent of the speaker, and either language can serve this purpose. And since in this day the Orb of knowledge hath risen in the firmament of Persia, this tongue deserveth every praise. 
(Baha’u’llah, ‘The Tabernacle of Unity, Bahá’u’lláh’s Responses to Mánikchí Sáhib and Other Writings’)