Questions

How should I read the Bible about fasting?

Fasting passages can be misread as a technique to twist God's arm, a badge to show off, or a way to punish the body. Matthew 6:16-18, Isaiah 58:6-9, and Acts 13:2-3 each push back on one of those distortions. Read together, they keep fasting honest.

By BibleInTongues Editorial TeamPublished March 18, 2026Reviewed by BibleInTongues Review Team on June 15, 2026

About this site Editorial policy

What this page gives you

A short, practical answer to one Christian reading question.
Clear links back into real passages so the answer stays tied to Scripture.
A concrete next step if the question needs deeper reading.

How to use this answer well

Read the key passages first, then return to the article.
Use the answer as orientation, not as a substitute for the full chapter.
If the subject stays open, continue into a guide, book overview, or short plan.

Key passages to read

Matthew 6:16-18 Acts 13:2-3 Isaiah 58:6-9

Open these chapters next

Use this page as a starting point, then keep reading in the full chapter.

Matthew 6

Start with Matthew 6 and keep the whole chapter open while you work through this question.

Acts 13

Start with Acts 13 and keep the whole chapter open while you work through this question.

Isaiah 58

Start with Isaiah 58 and keep the whole chapter open while you work through this question.

Core terms behind this page

Use these glossary pages if you want the key biblical terms defined more clearly before you keep reading.

Fasting

In the Bible, fasting means going without food for a set time to seek God in prayer, humble oneself, mourn, or wait for an answer with the whole heart.

Humility

What humility means in the Bible, how it differs from self-hatred, and how to read the theme without flattening it.

Mercy

What mercy means in the Bible, how it differs from sentimentality, and where Scripture shows its depth most clearly.

Prayer

What prayer means in the Bible, how it includes more than asking for things, and where Scripture teaches it most clearly.

Common confusion to avoid

These are the most common ways this term gets flattened, softened, or used out of context.

Do not turn this term into baptized self-help or mere personal improvement.
Do not read it as if it can be understood well without reverence, obedience, and biblical context.
Do not reduce this term to institution, ritual, or isolated religious identity.
Do not detach it from the larger biblical storyline, the real church, and the full passages where it appears.

Use this for better study

Use these prompts if you want to slow down and turn this page into actual Bible reading.

1.After reading “How should I read the Bible about fasting?”, which key passage do you need to reread in the full chapter?
2.What part of this answer actually clarifies the issue, and what still needs to be checked in Scripture itself?
3.What is the most realistic next step: a guide, a short plan, or a theme page?

Start by asking what each passage warns against

Before deciding how to fast, notice what these texts are guarding. In Matthew 6:16 Jesus targets the hypocrites who "disfigure their faces that they may be seen by men to be fasting." The danger he names is display: turning a private matter toward Father into a public role.

Isaiah 58 guards a different flank. There the people fast and even bow their heads, yet God will not answer because they oppress workers and ignore the poor. The warning is superstition — treating the ritual as leverage over God while the heart stays unchanged.

Reading both first keeps you from importing your own assumptions. Let the passages set the agenda: not how to fast impressively, but how to fast truthfully.

Matthew 6:16-18: fasting that stays hidden

Jesus does not cancel fasting; he assumes it ("when you fast"). What he changes is the audience. In verse 17 he says to anoint your head and wash your face — to look ordinary — so that you are seen "not by men" but "by your Father who is in secret."

This is the cure for display. If no one knows you are fasting, you cannot be doing it for their approval. The reward Jesus promises comes from the Father who sees in secret, not from anyone who might be impressed.

Isaiah 58:6-9: fasting tied to mercy

Isaiah answers the superstition problem by redefining the fast God chooses: "to release the bonds of wickedness, to undo the straps of the yoke, to let the oppressed go free" (58:6). The next verse is concrete — share bread with the hungry, bring the homeless poor into your house, cover the naked.

Then come the promises: "your light will break out as the morning," and "you will call, and the LORD will answer" (58:8-9). The answered prayer the people wanted is attached to justice, not to the hunger by itself. This is the cure for treating a fast as a magic lever.

Acts 13:2-3: fasting that listens

At Antioch the leaders "served the Lord and fasted," and during that fast the Holy Spirit said, "Separate Barnabas and Saul for me." Fasting here is not self-punishment; it is attentiveness, a way of clearing the noise to hear and obey.

After they "fasted and prayed and laid their hands on them," they sent the two out. The fast leads outward into mission, not inward into self-focus. That direction is the cure for turning fasting into a private ordeal aimed at the body.

Putting the three together

Read in sequence, the passages map the heart of a healthy fast: hidden from people (Matthew 6), joined to mercy and justice (Isaiah 58), and aimed at hearing and following God (Acts 13). Each guards a door the others leave open.

When you study or practice fasting, hold all three in view. If a fast becomes a performance, return to Matthew 6. If it ignores your neighbor, return to Isaiah 58. If it curves in on yourself, return to Antioch and ask what God might be sending you toward.