Pope Shenouda III
Fasting in set times is also a Biblical doctrine, as the Lord defines in the Book of the Prophet Zechariah: "The fast of the fourth month, the fast of the fifth, the fast of the seventh, and the fast of the tenth" (Zech.8: 19). The reason of defining times for fasting may be to regulate communal worship. Occasions of fasts in Christianity have Christian implications: each fast has its own spiritual aim, effect and reason.
