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

December 31

Blessed is he who in the prime of his youth and the heyday of his life will arise to serve the Cause of the Lord of the beginning and of the end, and adorn his heart with His love. The manifestation of such a grace is greater than the creation of the heavens and of the earth. Blessed are the steadfast and well is it with those who are firm. 
(Baha’u’llah, The Compilation of Compilations, vol. II, Youth)