"18Now John's disciples and the Pharisees were fasting. Some people came and asked Jesus, “How is it that John's disciples and the disciples of the Pharisees are fasting, but yours are not?”
19Jesus answered, “How can the guests of the bridegroom fast while he is with them? They cannot, so long as they have him with them. 20But the time will come when the bridegroom will be taken from them, and on that day they will fast." (NIV)