Matthew 17:21: Prayer, fasting in faith?
How does Matthew 17:21 emphasize the importance of prayer and fasting in faith?

Setting the Scene

- Matthew 17 recounts Jesus’ transfiguration and the disciples’ inability to cast a demon out of a boy.

- After Jesus delivers the child, He explains why the disciples failed: “But this kind does not go out except by prayer and fasting.” (Matthew 17:21)


Why Prayer and Fasting Matter

- Jesus treats prayer and fasting as non-negotiable tools for confronting stubborn spiritual opposition.

- The verse underscores that certain breakthroughs require more than ordinary faith-expressions; they demand focused dependence on God.


Prayer: Direct Dependence

- Prayer keeps believers aligned with God’s power and will (John 15:7).

- James 5:16 links effective prayer with righteousness, highlighting the spiritual readiness Jesus refers to here.


Fasting: Intensified Devotion

- Fasting voluntarily lays aside physical needs to pursue spiritual urgency (Matthew 6:16-18).

- Throughout Scripture, fasting precedes decisive acts of God—see Acts 13:2-3 (sending missionaries) and Acts 14:23 (appointing elders).


The Combined Force

- Jesus couples prayer with fasting, showing they function best together for deep spiritual challenges.

- Mark 9:29 records the parallel teaching, reinforcing that both practices are essential, not optional extras.


Faith Strengthened Through Discipline

- Matthew 17:20 notes the disciples’ “little faith.” Verse 21 provides the remedy: faith grows stronger when disciplined by prayer and fasting.

- Isaiah 58:6 links fasting to loosening “the bonds of wickedness,” illustrating its power to break spiritual chains.


Practical Takeaways

• Make regular prayer a first response, not a last resort.

• Integrate periodic fasting to seek clarity, victory over sin, or guidance.

• Approach stubborn spiritual problems expecting that intensified devotion will invite God’s decisive intervention.


Living It Out

Daily, intentional communion with God—deepened through fasting when needed—positions believers to exercise mountain-moving faith and walk in Christ’s victorious authority.

What is the meaning of Matthew 17:21?
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