June 18

As Bahá'u'lláh was so very much against divorce (even though He permits it) and considered marriage a most sacred responsibility, believers should do everything in their power to preserve the marriages they have contracted, and to make of them exemplary unions, governed by the noblest motives. 
(From a letter written on behalf of Shoghi Effendi, 19 October 1947 to an individual believer; The Compilation of Compilations vol. I, Divorce)