Matthew 6:16

And when ye fast, be not, like the hypocrites, of a gloomy countenance; for they disfigure their faces, that they may be observed by men to fast: I tell you, they have indeed their reward.

Matthew 6:2

Therefore when thou dost an alms-deed, do not proclaim it abroad, as the hypocrites do, in the synagogues, and in the streets, that they may be applauded by men. Verily I tell you, they have their reward.

Matthew 6:5

And when thou prayest, be not like the hypocrites; for they love to pray in public assemblies, and in the corners of the streets, that they may be taken notice of by men. Verily I say unto you, they have their reward.

Luke 18:12

I fast twice a week, and I give tithes of all that I possess.

Matthew 9:14-15

Then also come to Him the disciples of John, saying, Why do we and the pharisees fast much, but thy disciples do not fast?

Mark 2:18

And as the disciples of John, and of the pharisees used to fast, they came to Him, saying, Why do the disciples of John and of the pharisees fast, but thy disciples fast not?

Luke 2:37

and had been a widow about eighty four years; who departed not from the temple; serving God with fastings and prayers night and day.

Acts 10:30

And Cornelius said, Four days ago I was fasting till this hour, and at the ninth hour I was praying in my house, when behold a man stood before me in bright raiment,

Acts 13:2-3

and as they were ministring to the Lord, and fasting, the holy Spirit said, Separate me Barnabas and Saul, for the work to which I have called them.

Acts 14:23

And when they had appointed them elders in every church, praying and fasting, they recommended them to the Lord, in whom they had believed.

1 Corinthians 7:5

Do not withdraw from one another, unless by consent for a season, that ye may attend to fasting and prayer: and come together again, least Satan tempt you through your incontinency.

2 Corinthians 6:5

in stripes, in imprisonments, in tumults, in labors, in watchings, in fastings;

2 Corinthians 11:27

in labor and toil, in watchings often, in hunger and thirst, in fastings often, in cold and nakedness: and beside these outward troubles,

Treasury of Scripture Knowledge

Summary

Moreover when ye fast, be not, as the hypocrites, of a sad countenance: for they disfigure their faces, that they may appear unto men to fast. Verily I say unto you, They have their reward.

Bible References

When

Matthew 9:14
Then also come to Him the disciples of John, saying, Why do we and the pharisees fast much, but thy disciples do not fast?
Luke 2:37
and had been a widow about eighty four years; who departed not from the temple; serving God with fastings and prayers night and day.
Acts 10:30
And Cornelius said, Four days ago I was fasting till this hour, and at the ninth hour I was praying in my house, when behold a man stood before me in bright raiment,
Acts 13:2
and as they were ministring to the Lord, and fasting, the holy Spirit said, Separate me Barnabas and Saul, for the work to which I have called them.
Acts 14:23
And when they had appointed them elders in every church, praying and fasting, they recommended them to the Lord, in whom they had believed.
1 Corinthians 7:5
Do not withdraw from one another, unless by consent for a season, that ye may attend to fasting and prayer: and come together again, least Satan tempt you through your incontinency.
2 Corinthians 6:5
in stripes, in imprisonments, in tumults, in labors, in watchings, in fastings;
2 Corinthians 11:27
in labor and toil, in watchings often, in hunger and thirst, in fastings often, in cold and nakedness: and beside these outward troubles,

Be

Matthew 6:2
Therefore when thou dost an alms-deed, do not proclaim it abroad, as the hypocrites do, in the synagogues, and in the streets, that they may be applauded by men. Verily I tell you, they have their reward.
Mark 2:18
And as the disciples of John, and of the pharisees used to fast, they came to Him, saying, Why do the disciples of John and of the pharisees fast, but thy disciples fast not?
Luke 18:12
I fast twice a week, and I give tithes of all that I possess.