April 3

The second part of the Religion of God, which refers to the material world, and which comprises fasting, prayer, forms of worship, marriage and divorce, the abolition of slavery, legal processes, transactions, indemnities for murder, violence, theft and injuries—this part of the Law of God, which refers to material things, is modified and altered in each prophetic cycle in accordance with the necessities of the times. 
(‘Abdu’l-Baha, table talks in Akka, authenticated by ‘Abdu’l-Baha; ‘Some Answered Questions’)