'Fast' in the Bible

Jesus said to them, “Can you make the wedding guests of the bridegroom fast while he is with them?

But days [for mourning] will come when the bridegroom is [forcefully] taken away from them. They will fast in those days.”

But as for that seed in the good soil, these are the ones who have heard the word with a good and noble heart, and hold on to it tightly, and bear fruit with patience.

I fast twice a week; I pay tithes of all that I get.’