The Bible Talks about Fasting.

– Matthew 6:16 – “And when you fast, do not look gloomy like the hypocrites, for they disfigure their faces that their fasting may be seen by others. Truly, I say to you, they have received their reward.”
– Matthew 9:15 – “And Jesus said to them, ‘Can the wedding guests mourn as long as the bridegroom is with them? The days will come when the bridegroom is taken away from them, and then they will fast.’”
– Mark 2:18 – “Now John’s disciples and the Pharisees were fasting. And people came and said to him, ‘Why do John’s disciples and the disciples of the Pharisees fast, but your disciples do not fast?’”
– Luke 5:33 – “And they said to him, ‘The disciples of John fast often and offer prayers, and so do the disciples of the Pharisees, but yours eat and drink.’”
– Acts 13:2-3 – “While they were worshiping the Lord and fasting, the Holy Spirit said, ‘Set apart for me Barnabas and Saul for the work to which I have called them.’ Then after fasting and praying they laid their hands on them and sent them off.”
– 2 Corinthians 6:5 – “in beatings, imprisonments, riots, labors, sleepless nights, hunger;” (the Greek word for hunger here is ‘nēsteia’, meaning fasting)
– 2 Corinthians 11:27 – “in toil and hardship, through many a sleepless night, in hunger and thirst, often without food, in cold and exposure.” (the Greek word for hunger here is ‘nēsteia’, meaning fasting)
– 1 Timothy 4:7-8 – “Have nothing to do with irreverent, silly myths. Rather train yourself for godliness; for while bodily training is of some value, godliness is of value in every way, as it holds promise for the present life and also for the life to come.” (the Greek word for ‘train yourself’ here is ‘gumnazō’, which can also mean ‘exercise self-discipline’ or ‘fast’)
– Joel 2:12 – “Yet even now,” declares the Lord, “return to me with all your heart, with fasting, with weeping, and with mourning;” (the Hebrew word for fasting here is ‘tsōm’, meaning to abstain from food)
– Zechariah 7:5 – “Say to all the people of the land and the priests, ‘When you fasted and mourned in the fifth month and in the seventh, for these seventy years, was it for me that you fasted?’” (the Hebrew word for fasting here is ‘tsōm’, meaning to abstain from food)