Matthew 9:14

Then the disciples of John come to him, saying, Why do we and the Pharisees fast much, but thy disciples fast not?

Matthew 11:2

Now when John heard in the prison the works of the Christ, having sent two of his disciples,

John 3:25

Therefore a debate developed from John's disciples with the Jews about purification.

John 4:1

When therefore the Lord knew that the Pharisees had heard that Jesus was making and immersing more disciples than John

Proverbs 20:6

Most men will proclaim every one his own goodness, but a faithful man who can find?

Matthew 6:16

And when ye fast, become not like the gloomy looking hypocrites, for they make their faces unsightly, so that they may appear fasting to men. Truly I say to you, they have their reward.

Matthew 11:18-19

For John came neither eating nor drinking, and they say, He has a demon.

Mark 2:18-22

And John's disciples and those of the Pharisees were fasting. And they come and say to him, Why do John's disciples and those of the Pharisees fast, but the disciples with you do not fast?

Luke 5:33-39

And they said to him, Why do the disciples of John fast often, and make supplications, and likewise those of the Pharisees, but thine eat and drink.

Luke 18:9-12

And he also spoke this parable to some of those who were persuaded in themselves that they were righteous, and disdained other men.

Treasury of Scripture Knowledge

Summary

Then came to him the disciples of John, saying, Why do we and the Pharisees fast oft, but thy disciples fast not?

Bible References

Why

Matthew 6:16
And when ye fast, become not like the gloomy looking hypocrites, for they make their faces unsightly, so that they may appear fasting to men. Truly I say to you, they have their reward.
Matthew 11:18
For John came neither eating nor drinking, and they say, He has a demon.
Proverbs 20:6
Most men will proclaim every one his own goodness, but a faithful man who can find?
Mark 2:18
And John's disciples and those of the Pharisees were fasting. And they come and say to him, Why do John's disciples and those of the Pharisees fast, but the disciples with you do not fast?
Luke 5:33
And they said to him, Why do the disciples of John fast often, and make supplications, and likewise those of the Pharisees, but thine eat and drink.
Luke 18:9
And he also spoke this parable to some of those who were persuaded in themselves that they were righteous, and disdained other men.