Thriving In New Corinth Companion Guide:
Download this companion guide for use Sept 1-Nov 16, 2025. This guide is designed to supplement and deepen our Sunday sermon series entitled Thriving in New Corinth. Each week, you will study one of the big topics found within the book of 1 Corinthians in preparation for the upcoming sermon on that topic.
Understanding True Christian Unity in a Divided World
Churches don't like each other. Growing up in a small town with 22-23 different churches serving just 5,500 people, this reality became painfully obvious. Denominations were skeptical of one another, talked negatively about each other's theology and practices, and maintained strict separation. "We're right, they're wrong, so there's no cooperation."
But something remarkable happened on a missionary school campus in Venezuela. Southern Baptist missionaries chatted comfortably with Assemblies of God workers—people who would never speak in their home churches due to disagreements about the Holy Spirit's baptism. Nazarene missionaries prayed alongside YWAM directors. Denominational barriers seemed to dissolve as these believers recognized they were part of the same team.
Yet that unity had limits. Meeting a Mormon missionary family created an immediate sense of distance, despite their obvious kindness and dedication. Why could some theological differences be bridged while others couldn't?
The answer lies at the heart of what Paul addresses in 1 Corinthians: the foundation of true Christian unity.
The church in Corinth had developed a serious tribalism problem. Just like high school cafeterias with their predictable social clusters—the popular crowd, the nerds, the fringe kids, the cowboys, and the goths—the Corinthian believers had fractured into competing factions:
"I follow Paul!" – He was the original church planter, the OG who brought the gospel to Corinth.
"I follow Apollos!" – A more eloquent teacher, nicer and more polished than the sometimes abrasive Paul.
"I follow Cephas (Peter)!" – One of the original twelve disciples, practically the senior pastor of the global church.
"I follow Christ!" – The insufferably self-righteous response from those who thought they were above the factions.
Sound familiar? Churches today still fragment along similar lines—reaching certain demographics while excluding others, organizing around preferred worship styles, theological frameworks, or charismatic leaders. We choose churches that "fit us" rather than challenging us to grow.
This tribalism stems from a fundamentally selfish approach: "How can this church serve me? How can these famous pastors serve me?" But Paul understood this self-centered perspective would ultimately divide and destroy the church's health and witness.
Paul identified two faulty foundations that people use to build their faith—foundations that inevitably lead to division:
Jews historically demanded miraculous signs as proof of God's power and presence. Before dismissing this as ancient superstition, consider how often we pray similarly:
"God, if you give me this job, then I'll tithe 10%." "God, if you give me a spouse, then we'll attend church every Sunday."
"God, if you heal my friend, then I'll share my faith with my neighbor."
We negotiate with God, demanding personal signs of His love, power, or provision. But Paul argues we've already been given the ultimate sign—the cross of Jesus Christ. Even if God never answered another prayer, the cross demonstrates His love, power, and commitment to us definitively.
Greeks pursued philosophical wisdom, which sounds admirable until you understand the difference between biblical and worldly wisdom. Biblical wisdom submits to God's revealed truth, even when it makes us uncomfortable. Worldly wisdom tries to make God's truth fit our existing beliefs, rejecting or ignoring what doesn't align with current cultural trends.
We see this clearly in contemporary debates about gender and sexuality. While affirming that LGBTQ individuals are made in God's image, deeply loved by Him, and recipients of Christ's sacrificial death—no better or worse than anyone else—biblical teaching also presents God's specific design for sex and gender. The wisdom of our age rejects this as outdated, but rather than twisting or ignoring difficult passages, biblical wisdom calls us to submit to God's design for our ultimate good, not our immediate comfort.
Christians across the theological spectrum fall into this trap. Whether leaving churches over predestination passages in Ephesians or rejecting biblical teachings on sexuality, we often prioritize our comfort over God's revealed truth.
Paul's solution cuts through both faulty approaches: "For I decided to know nothing among you except Jesus Christ and him crucified" (1 Corinthians 2:2).
Unlike his brilliant philosophical sermon in Athens or his miraculous healings in other cities, Paul deliberately avoided impressive displays in Corinth. He didn't want them wowed by his eloquence or power—he wanted them captivated by Jesus.
This focus on "Christ crucified" provides the only foundation solid enough to support true unity. Paul explains: "For the word of the cross is folly to those who are perishing, but to us who are being saved, it is the power of God" (1 Corinthians 1:18).
The cross appears foolish to worldly wisdom and insufficient to those demanding signs. But for believers—both Jews and Greeks—Christ becomes "the power of God and the wisdom of God" (1 Corinthians 1:24).
Paul deflated personality cults by putting famous leaders in proper perspective: "What then is Apollos? What is Paul? Servants through whom you believed, as the Lord assigned to each. I planted, Apollos watered, but God gave the growth. So neither he who plants nor he who waters is anything, but only God who gives the growth" (1 Corinthians 3:5-7).
Gifted pastors, theologians, authors, and podcasters are treasures—but they're servants, not saviors. Their role is helping us become disciples of Jesus, not disciples of them. If one person or theological system does all your spiritual thinking, you've likely become their disciple rather than Christ's.
Use these voices like commentaries—learn from them, be blessed by them, but ultimately let the Holy Spirit teach you through God's Word.
True Christian unity centers on the gospel: salvation by grace alone through faith alone in Christ alone. This explains the missionary dynamics in Venezuela.
The Southern Baptist and Assemblies of God missionaries could celebrate together despite disagreeing about the Holy Spirit's baptism because they both recognized their salvation came through Christ's death and resurrection. They were teammates because they belonged to the same Father.
The Mormon missionaries, despite their kindness and dedication, represented a fundamentally different gospel. Mormonism teaches a three-tiered heaven where salvation ultimately depends on works and worthiness—contradicting Ephesians 2:8-9's clear teaching that salvation is "not by works, so that no one may boast."
This isn't about being better than others—it's about recognizing that unity requires shared commitment to the biblical gospel.
As we consider church unity in our current context, three questions demand honest answers:
1. How are you contributing to Christian unity or disunity? Examine your words, social media posts, thoughts, and prayers. Are you building up God's church locally and globally, or tearing it down through criticism, gossip, or division?
2. Have you unintentionally elevated any Christian leader above God? Is your theology primarily based on what specific authors, podcasters, or pastors have taught, or do you have a direct relationship with God through His Word? Have you elevated any human voice to unhealthy prominence?
3. Is there a fellow believer you've distanced yourself from over secondary issues? While maintaining biblical convictions, have you broken fellowship with someone who shares your commitment to the gospel? Is the Holy Spirit prompting you to repair that relationship?
Church unity doesn't mean ignoring theological differences or accepting every teaching as equally valid. It means recognizing that our primary identity isn't found in our preferred worship style, theological system, or favorite teacher—it's found in Christ and His finished work on the cross.
When Jesus becomes our cornerstone rather than our preferences, we can disagree on secondary matters while maintaining genuine fellowship. We can challenge each other's thinking while assuming good faith. We can worship alongside people who vote differently, learn differently, and express their faith differently.
This unity becomes especially crucial during seasons of cultural tension and division. Rather than retreating into our preferred tribes, the gospel calls us to model a different way—one that transcends political, cultural, and even some theological boundaries because we're united by something deeper than our differences.
The foundation of Christian unity isn't found in the signs God gives us beyond the cross, nor in conforming His truth to contemporary wisdom. It's found in the scandalous, foolish, powerful reality that Jesus Christ died for our sins and rose from the dead, making us family regardless of our backgrounds, preferences, or secondary disagreements.
In a world increasingly divided by tribalism, the church has the opportunity to demonstrate that unity is possible when it's built on the right foundation. The question is whether we'll choose the comfort of our preferred tribes or the challenge—and joy—of genuine Christian community centered on Christ crucified.
True unity doesn't require uniformity, but it does require the right foundation. When Christ becomes our cornerstone, we discover that what unites us is far greater than what divides us.
