People asked Jesus why He and his disciples did not fast like Pharisees and John's disciples. Jesus answered that wedding guests do not fast during a wedding feast. Rabbi even said that joy was more important than religious rules. Inferring that He is the bridegroom means He is the Messiah. He predicted His departure saying they would fast when He is forcibly taken away. This is about the Kingdom of God breaking into the world and an invitation to joyfully be the bride of Christ.