Matthew 6:16-18 New King James Version (NKJV)

16 “Moreover, when you fast, do not be like the [a]hypocrites, with a sad countenance. For they disfigure their faces that they may appear to men to be fasting. Assuredly, I say to you, they have their reward. 17 But you, when you fast, anoint your head and wash your face, 18 so that you do not appear to men to be fasting, but to your Father who is in the secret place; and your Father who sees in secret will reward you [b]openly.

Matthew 6:16-18 Common English Bible (CEB)

16 “And when you fast, don’t put on a sad face like the hypocrites. They distort their faces so people will know they are fasting. I assure you that they have their reward. 17 When you fast, brush your hair and wash your face. 18 Then you won’t look like you are fasting to people, but only to your Father who is present in that secret place. Your Father who sees in secret will reward you.