Bible Verses About Fasting: Habitual by Pharisees

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

And the disciples of John and of the Pharisees used to fast: and they come and say unto him, Why do the disciples of John and of the Pharisees fast, but thy disciples fast not?

I fast twice in the week, I give tithes of all that I possess.