Many believers aren’t spiritually weak because they aren’t working hard enough, but because they’ve grown dull. In this sermon from Matthew 6:16–18 and Isaiah 58, we discover God’s purpose for biblical fasting and why Jesus assumed His followers would fast, not if, but when.

Using Scripture from the Old Testament, the life of Jesus, and the early church, this message explains what fasting truly is, what it is not, and how God uses it to bring freedom, healing, strength, discernment, and breakthrough. Isaiah 58 reveals that fasting is not about outward performance but inward transformation, aligning our hearts with God so He can act on our behalf.

This sermon calls the church to a 21-day fast, not as a religious ritual, but as a way to sharpen our spiritual edge, humble ourselves before God, and seek renewal for our church, our families, and the salvation of souls.

If your spiritual life feels exhausting, this message may show you why and how God wants to restore clarity, power, and intimacy with Him.

Key Topics:

Biblical Fasting, Matthew 6, Isaiah 58, Spiritual Renewal, Prayer and Fasting, Christian Disciplines, Hearing God’s Voice, Breakthrough Faith, Strength Against Temptation, Churchwide Fast