Following your heart or following your gut? Paul’s warning to believers …

We live in an age that prizes internal guidance. From motivational speakers to pop psychology, the message echoes: “Trust yourself,” “Listen to your intuition,” and most famously, “Follow your heart.” For many Christians, this is a clear cue to pump the brakes. We immediately recall the ancient warning from the prophet:

“The human heart is the most deceitful of all things, and desperately wicked. Who really knows how bad it is?” Jeremiah 17:9.

The promise of a new heart
The immediate Christian response to “follow your heart” is often to cite Jeremiah, emphasizing the heart’s natural wickedness. And yet, this doesn’t tell the whole story for the believer. The Gospel promises a profound change, a spiritual heart transplant that reorients our core desires toward God:

“And I will give you a new heart, and I will put a new spirit in you. I will take out your stony, stubborn heart and give you a tender, responsive heart,” Ezekiel 36:26.

For those in Christ, the issue is no longer just a “wicked heart,” but something else that tugs at our decisions, something deeply visceral that modern secular wisdom urges us to trust: the gut.

“Go with your gut.” “What does your gut tell you?” These phrases encourage us to let a raw, instinctual desire or feeling guide us. But the Apostle Paul introduces a serious warning about this “internal compass,” not concerning the new heart God has provided, but concerning the unrenewed appetite that still holds sway over some who claim Christ.

A tragic devotion to appetite
Paul addresses believers, urging them to follow his example and the example of others who live for Christ (Philippians 3:17), while simultaneously warning against those who live differently:

“Dear brothers and sisters, pattern your lives after mine, and learn from those who follow our example. For I have told you often before, and I say it again with tears in my eyes, that there are many whose conduct shows they are really enemies of the cross of Christ. They are headed for destruction. Their god is their appetite, they brag about shameful things, and they think only about this life here on earth,” Philippians 3:17-19.

The focal point of Paul’s grief is the tragically misplaced devotion: “Their god is their appetite.”

The Greek word Paul uses here for “appetite” is koilia, which literally means “belly” or “stomach.” It refers to the gut, the physical location of hunger, the seat of carnal desires, and the source of primal cravings. For these “enemies of the cross,” their ultimate authority — their “god” — is not the guiding spirit of a new heart, but the insistent, base demands of their physical and material wants. They are defined by what they crave and consume, whether it is food, power, sexual pleasure, or worldly comfort.

Paul clearly outlines the consequence of making the gut, the appetite, your god: “They are headed for destruction.” This is a present reality for those whose ultimate concern is what satisfies them in the moment, whose life philosophy is hedonism dressed in the pretense of belief. Their boast is in “shameful things” — things that ought to embarrass them — and their entire worldview is constricted by how they “think only about this life here on earth,” having no regard for eternity.

The transforming context
The contrast could not be starker. Paul immediately pivots to the true source of guidance and hope for the authentic believer. While the “enemies of the cross” have their minds fixed on this life and their belly, the believer has a transformed citizenship and a future hope:

“But we are citizens of heaven, where the Lord Jesus Christ lives. And we are eagerly waiting for him to return as our Savior. He will take our weak mortal bodies and change them into glorious bodies like his own, using the same power with which he will bring everything under his control,” Philippians 3:20-21.

This transformation is future and absolute. Our citizenship is already heaven’s, and our heart has been renewed, but we are still living in these present “weak mortal bodies.” It is the certainty of Christ’s return — the fact that He will “take our weak mortal bodies and change them into glorious bodies like his own” — that provides the ultimate perspective against the pull of the appetite. This eternal hope acts as a check on our present-day desires. When our life’s focus is on the coming Savior and the reality of this complete, physical transformation, our cravings for the temporary satisfaction of the belly diminish.

When we are tempted to “follow our gut,” we must remember Paul’s devastating assessment: for some, the gut is a god leading to ruin. The true believer, guided by the Holy Spirit and the new, tender heart God has given, looks upward, not inward, and certainly not downward toward the demands of the belly. Our guidance comes from Christ, and our hope transcends this temporary life of appetites.

Live in light of your heavenly citizenship, which redefines the value of every earthly desire.

Scotty