"In addition, when you fast [i.e., go without food and/or drink for religious reasons], do not be like the hypocrites with long faces, for they go around with gloomy expressions on their faces in order to advertise that they are fasting. It is true when I say to you, these people have [already] received their reward.

But when you fast, groom your hair and wash your face

Some of John's disciples came to Jesus saying, "Why is it that we and the Pharisees fast frequently [i.e., going without food and/or drink for religious reasons], but your disciples do not fast [at all]?"

Jesus said to them, "Can the groomsmen act sadly while the groom is still with them? But the time will come when the groom will be taken away from them, and then they will fast.