Ὅταν δὲ νηστεύητε, μὴ γίνεσθε ὡσπερ οἱ ὑποκριταὶ, σκυθρωποί. ἀφανίζουσι γὰρ τὰ πρόσωπα αὐτῶν, ὅπως φανῶσι τοῖς ἀνθρώποις νηστεύοντες. ἀμὴν λέγω ὑμῖν ὅτι ἀπέχουσι τὸν μισθὸν αὐτῶν.

And when you fast, do not become like the hypocrites, of a sad countenance, for they disfigure their faces so that they may appear to men fasting. Amen I say to you, they have  received their reward.