Thematic Bible: How not to fast

"Moreover, when ye fast, be not sad as the hypocrites are: for they disfigure their faces, that they might be seen of men how they fast. Verily I say unto you, they have their reward. But thou, when thou fastest, anoint thine head, and wash thy face, that it appear not unto men how that thou fastest, but unto thy father which is in secret: and thy father, which seeth in secret, shall reward thee openly.