Mark 2:18
And John's disciples and the Pharisees were fasting, and they came and said to him, "{Why} do the disciples of John and the disciples of the Pharisees fast, but your disciples do not fast?"
Matthew 6:16
"Whenever you fast, do not be sullen like the hypocrites, for they make their faces unrecognizable in order that they may be seen fasting by people. Truly I say to you, they have received their reward in full!
Matthew 6:18
so that you will not be seen by people as fasting, but to your Father who is in secret, and your Father who sees in secret will reward you.
Matthew 9:14-17
Then the disciples of John approached him, saying, "Why do we and the Pharisees fast often, but your disciples do not fast?"
Luke 18:12
I fast twice a week; I give a tenth of all that I get.'
Matthew 23:5
And they do all their deeds in order to be seen by people, for they make their phylacteries broad and make their tassels long.
Luke 5:33-39
And they said to him, "The disciples of John fast often and make prayers--likewise also the [disciples] of the Pharisees--but yours are eating and drinking!"
Romans 10:3
For ignoring the righteousness of God, and seeking to establish their own, they did not subject themselves to the righteousness of God.