Two Ways of Thinking: What the Bible Says About Christians Living in a Pagan World

There are two fundamentally different ways of seeing the world, and they cannot be blended together. Paul makes this clear in his letter to the Ephesians, and it is just as relevant today as it was in the first century.

What Does Ephesians 4:17-20 Actually Say?

Paul writes with urgency and authority:

"Now this I say and testify in the Lord, that you must no longer walk as the Gentiles do, in the futility of their minds. They are darkened in their understanding, alienated from the life of God because of the ignorance that is in them, due to the hardness of their heart. They have become callous and have given themselves up to sensuality, greedy to practice every kind of impurity. But that is not the way you learned Christ!" - Ephesians 4:17-20 English Standard Version (ESV)

These are strong words. Paul is not speaking casually. He is making a solemn, apostolic declaration about two incompatible ways of living.

Why Does the Bible Draw Such a Sharp Line Between Christians and Paganism?

Paul presents two theological frameworks that simply do not overlap. One is the way of the Gentiles, characterized by futile thinking, darkened understanding, and moral impurity. The other is the way of Christ, grounded in revealed truth and transformed living.

This was not abstract for the Ephesian Christians. The temple of Artemis sat on a hill dominating their city, serving as its commercial and social center. Paganism was not a distant idea. It was the culture they lived in every single day.

The same dynamic is increasingly present in the world around us today.

How Do Pagan and Christian Ways of Thinking Differ?

Pagan Thinking Starts From Within

Paul describes pagan minds as futile. This does not mean pagans are unintelligent. He has a healthy respect for what human minds can do. But the essential starting point, the foundational presupposition, is corrupted.

As Paul writes in Romans 1:21: "For although they knew God, they did not honor him as God or give thanks to Him, but they became futile in their thinking, and their foolish hearts were darkened." - Romans 1:21 English Standard Version (ESV)

Pagan knowledge is not neutral. It suppresses truth. It elevates human reasoning to the place that only God can occupy. Whether it comes through mystical experience, personal intuition, or philosophical systems, it ultimately points back to the self as the final authority.

Christian Thinking Starts With Revelation

Paul says, "Now this I say and testify in the Lord." He is not offering an opinion. He is delivering revealed truth. The Bible is not simply the faith of Israel or the early church. It is God's revelation of Himself through chosen human vessels.

This is the sharpest possible contrast with pagan knowing. One system looks inward. The other receives truth from the Creator who made all things.

What Does the Bible Say About the God of This World Versus the God Who Made the World?

Paul describes the spiritual forces behind pagan systems in Ephesians 6:12: "For we do not wrestle against flesh and blood, but against the rulers, against the authorities, against the cosmic powers over this present darkness, against the spiritual forces of evil in the heavenly places." - Ephesians 6:12 English Standard Version (ESV)

The God who made the world is the Father of all creation, the Redeemer who acts in Christ, and the triune God who reconciles humanity to Himself. Paul writes in Ephesians 2:12-13: "Remember that you were at that time separated from Christ, alienated from the commonwealth of Israel and strangers to the covenants of promise, having no hope and without God in the world. But now in Christ Jesus you who once were far off have been brought near by the blood of Christ." - Ephesians 2:12-13 English Standard Version (ESV)

The alienation is gone. We are united with Christ. That is the power of the gospel.

Does This Mean Christians Should Avoid All Contact With Non-Christians?

No. And this is a critical distinction.

Paul is not calling Christians to ghetto living. He is calling them to a different way of thinking that produces a different way of living. There is a meaningful difference between those two things.

The early church is a powerful example. Infanticide was common in the Roman world. Parents would leave newborns at crossroads outside of town. Christians did not hold up signs or shout condemnations. They followed those parents out and picked up the children. They brought them home and cared for them. Over time, people figured out that the church was closer than the crossroads, and the practice stopped.

That is what it looks like to engage culture with the gospel rather than simply condemning it from a distance.

How Should Christians Engage With People Who Think Differently?

Paul's instruction in 2 Corinthians 6:17-18 calls believers to be separate, but this is not about isolation. It is about maintaining a clear identity and a clear witness.

There is a balance to hold. You can be present in places and relationships without endorsing everything that happens there. You can love people without pretending there is no difference between a life in Christ and a life without Him. You can speak truth without being hostile.

People who are not Christians will often know where you stand. The question is whether they see that difference expressed with grace or with judgment.

What Is the Goal of Understanding the Antithesis Between Christianity and Paganism?

The antithesis is not meant to shut down evangelism. It is meant to fuel it.

Paul writes in Ephesians 3:6 that "the Gentiles are fellow heirs, members of the same body, and partakers of the promise in Christ Jesus through the gospel." - Ephesians 3:6 English Standard Version (ESV)

The promise given to Abraham was always meant to bless all nations. Understanding that there are two different ways of thinking should drive Christians to evangelize with clarity, to live with integrity, and to pray without ceasing. The die is not cast. The drama of life is still in full swing.

As Paul closes with a doxology: "Now to him who is able to do far more abundantly than all that we ask or think, according to the power at work within us." - Ephesians 3:20 English Standard Version (ESV)

He is able to do more than we ever imagine. That includes reaching people whose minds are currently darkened.

Life Application

This week, take an honest look at the relationships and environments in your life. Consider where you may have drifted toward blending in rather than standing apart in a way that reflects Christ. The challenge is not to withdraw from the world, but to be intentional about how you engage it.

Choose one relationship with someone who does not know Christ and ask yourself how you can be genuinely present with that person this week in a way that reflects the love and truth of the gospel. Not with a script, but with a clear sense of who you are in Christ and what you believe.

Ask yourself these questions:

• Am I allowing the values and assumptions of the surrounding culture to quietly shape how I think, rather than letting Scripture define my starting point?
• Is there someone in my life I have been avoiding because engaging them feels uncomfortable, when what they actually need is a faithful friend who knows Jesus?
• Do the people around me know where I stand, and do they see that conviction expressed with grace rather than judgment?
• Am I praying for the people in my life who do not yet know Christ, trusting that God is able to do far more than I can ask or imagine?