Chapter 4 - The Nature of Marriage

Kelly Ann Marino

Welcome back to the FC Residency channel on marriage and family I'm Kelly Ann Marino, and I’m here again with Paul Sheffield. Today, we're focusing on Chapter 4 of our primary text, God, Marriage and Family by Andreas Kostenberger and we’re exploring something that, honestly, has puzzled me —different models for what marriage actually is. Paul, I remember sitting on the shag carpet at my aunt’s house, overhearing grownups say marriage was this magical event that "changes your soul"—almost like a lightning bolt, you know? It felt like you’d walk down the aisle and boom, you’ve got this glow around you forever. But growing up, I wondered, is there really some kind of mystical power released in those vows? Or is that just family tradition wrapped up in stained glass and ritual?

Paul Sheffield

That’s a vivid memory, Kelly—I can just see you pondering in the middle of all that. You’ve hit right on what theologians call the sacramental model. The idea here, tracing back to Augustine and then really codified at the Council of Trent, is that marriage is a church rite—actually a sacrament, just like baptism or communion—where God himself bestows grace. In that setup, the act of marrying in church kind of becomes a channel for receiving something supernatural. But if I’m reading Scripture honestly, I have to say: I don’t see marriage working that way. The Bible never says there’s an automatic spiritual upgrade if you just recite the right words or go through a ritual. In fact, regeneration—being made new in Christ—is what’s truly transformative, not those vows alone.

Kelly Ann Marino

Exactly. I think a lot of us picture that ceremonial moment as, like, God's seal of approval. But scripturally, it’s so much more about living out that relationship than checking off a religious box. Plus, this framework really puts the husband and wife kind of downstream from the church’s authority, right? But we don’t see the early church regulating marriage as a sort of grace-dispenser. And, well, marriage in the Bible is about bringing new life into the world—physical life, not instant spiritual life.

Paul Sheffield

That’s right. I might be wrong, but it seems to me the only thing 'mystical' going on is the mystery of how two very different people stick together at all. And, really, the Bible places responsibility and blessing on God, not church ceremonies. So, while marriage is deeply sacred, it isn’t, in itself, a vehicle for automatic divine grace. It’s a calling, not a spiritual vending machine.

Paul Sheffield

Now, let's slide over to another really common idea—marriage as a contract. This is the model that runs most of what we see in the West. It’s all about mutual agreement, right? Two people, a handshake—or these days, a signature—and you’re set. Civil law draws the lines: how you legally join, how you legally split. Honestly, I see a lot of folks come to marriage counseling with that mindset—"If you don’t hold up your end, I’m out."

Kelly Ann Marino

It’s almost like signing up for a cell phone plan—"as long as I get what I need, we’re good," but if not, then, well, on to the next. I mean, that sounds harsh, but the mentality really is, "I’m here for my benefit." And if my needs aren’t met or if the rules change, there’s no deep anchor to hold us together.

Paul Sheffield

Yeah, and in fact—this is what I see—when couples come together just for the paperwork, it’s hard for them to envision ‘forever’ in the scriptural sense. I remember a couple, years ago, who told me, "We got married because it was easier for health insurance." Nothing wrong with being practical, but when things got tough, that lack of rootedness made real commitment awfully shaky. If marriage boils down to what each person gets out of it, it’s unstable. One wrong move, contract’s off.

Kelly Ann Marino

That’s so true, Paul. And by using civil law as the ultimate authority, it even opens the door to redefining marriage to include all sorts of arrangements, some that the Bible speaks directly against. There’s just not much resilience there—nothing that calls out the sacredness or permanence God designed. It’s, well, reductionistic, like looking at a redwood and only seeing firewood, not the whole tree and its roots in creation.

Kelly Ann Marino

Okay, so if sacramental and contract models fall short, where does that leave us? The covenantal model—a sacred bond before God, not the church or the state, but God as the primary witness and foundation. This idea really takes shape in Genesis 2, when Adam and Eve become "one flesh," with echoes in Proverbs and Malachi describing marriage as a covenant—solemn, serious, and lasting.

Paul Sheffield

Yeah. That biblical language is weighty—covenant in Hebrew isn’t far off from ‘contract,’ but with this caveat: a covenant isn’t broken by failure; it’s an enduring promise. Even in the New Testament, while marriage isn’t usually called a covenant outright, the undercurrent is there. The idea is faithfulness patterned after God’s commitments—irrevocable, not easily dissolved.

Kelly Ann Marino

Right, and I think it's so helpful to see that God's standard isn’t built on convenience or feelings, but something solemn and public. Genesis 2 makes that clear—leaving and cleaving, building something new. And while some scholars say, "Well, the words overlap, so maybe there’s not a sharp line between contract and covenant in the Old Testament," the meaning is definitely deeper than a standard deal or agreement. There’s a divine anchor involved.

Paul Sheffield

Exactly, Kelly. When you root marriage in divine law, it’s less about managing transactions and more about living into a promise—one that shapes your very story. That covenant becomes the soil for real faithfulness and transformative partnership.

Paul Sheffield

Alright, let’s break down what this covenantal model actually looks like in real life. There are five pillars—permanence, sacredness, intimacy, mutuality, and exclusiveness. First up, permanence: marriage isn’t meant to be a revolving door. It’s established by God and designed to last; breaking it is a serious matter, only allowed for biblical reasons, and not to be entered—or exited—lightly.

Kelly Ann Marino

I love that image. And then, sacredness—marriage isn’t just a civil contract, but a real relationship under God. That makes it, well, off-limits to constant redefinition. And then intimacy—nothing else comes close on a human level. “One flesh” is so much more than sharing an address; it’s about forming a new family, a new story together.

Paul Sheffield

Yeah, and mutuality is huge. The covenant isn’t about sameness in roles but a persistent, free self-giving from both partners. Scripture calls for deep devotion and steadfast love—wives supporting and husbands carrying the ultimate responsibility before God. But there’s still forgiveness built in, too. It's not a contract of perfection; it’s a practice of grace.

Kelly Ann Marino

And then there’s exclusiveness. This one makes me think back to growing up in a blended family, where there were all these different expectations and boundaries. The promise of exclusivity… it’s what actually gives security and emotional safety. It tells each person, "You are my person. I will protect this bond." Without that, you’re left with—well, confusion and hurt.

Paul Sheffield

That’s so important, Kelly. Exclusivity makes room for trust. It’s why Jesus treats even lustful thoughts so seriously. The marriage covenant guards a relationship that’s meant to be uniquely protected, no matter what’s going on around you.

Kelly Ann Marino

Alright, let’s pause for a second—because this covenant has implications for intimacy, for sex. Paul, can we talk about how Christian theology reframes sex? It’s not just about pleasure or solving loneliness; there are deeper biblical reasons for it.

Paul Sheffield

You bet. The world tends to see sex as a source of fulfillment or even salvation—think every love song on the radio. But biblically, sex is a good gift, yes, but always in the service of God’s intentions. Its purposes? Procreation, yes—"be fruitful and multiply"—but also for relational depth, public good, and pleasure within marriage. Sex is for forming that one-flesh bond, creating companionship, and—when necessary—modeling restraint and modesty for the good of the wider community. It all comes under Christ’s lordship, not just whatever feels right in the moment.

Kelly Ann Marino

And Scripture’s boundaries make so much sense in that light. Anything outside the marriage covenant—premarital sex, adultery, lust flooding in through our eyes, even pornography, and other acts like orgies or prostitution—those all sit outside God’s intent. It’s not about limiting joy; it’s about protecting something precious, making sure intimacy is safe, restorative, and deeply good.

Paul Sheffield

Exactly, and during my pastoral years, when couples were able to honestly ask, “Is this act scriptural? Is it beneficial for us physically, emotionally, spiritually? Does it include anyone outside this bond?”—those conversations nearly always led to deeper trust. Sex isn’t supposed to be a series of isolated acts but a lifetime of faithful union—whole, not fragmented.

Paul Sheffield

From there, Kelly, it strikes me just how much marriage is, at its core, a process of becoming—of being shaped, day by day, into new people. Discipleship, even. Living as husband and wife is a spiritual discipline, sometimes more than any Bible study or Sunday service. Sharing life that closely—well, it tests and grows your character like nothing else. You learn patience, sacrifice, and sometimes you hit the wall and realize how much you need grace.

Kelly Ann Marino

I couldn’t agree more. Even that simple act of pausing to pray or read a passage together at the end of the day—those small moments build spiritual intimacy. And it’s so easy to drift into autopilot in marriage, isn’t it? But I like to think of it as waking up to ask: "How are we witnessing Christ’s love to each other?” Those are the roots that anchor you when storms hit. Even small, ordinary practices can transform your whole outlook.

Paul Sheffield

Absolutely. Walking as disciples in marriage isn’t about reaching perfection, but intentionally reflecting who Jesus is in how you react, how you forgive, and how you show up for your spouse—sometimes when you really don’t want to. And, when you fall short—because you will—there’s room for confession, for repentance, for starting again. It’s an ongoing journey, not a graduation certificate.

Kelly Ann Marino

So, what does this all add up to? Marriage isn’t only about what happens in your home. It’s also a living testimony—how you interact, serve, forgive, and show patience. That’s what people notice, especially if you call yourself a Christian. Marriage can be, maybe should be, a window into the love of Christ for the world.

Paul Sheffield

Yeah—and it’s practical too. Sometimes it’s just a kind word when you’re frustrated, making time to serve together, forgiving when you’d rather stew. Those acts don’t just build up your marriage, they show others what grace looks like in real life. And you don’t do it alone—community, small groups, your church family? They can help you carry that witness. Surrounding yourself with people who support and remind you of your commitment, that’s huge—almost like scaffolding when you’re doing tricky repairs on a house.

Kelly Ann Marino

That’s a good visual, Paul. Whether it’s joining a couple’s group or volunteering side by side, inviting accountability in, or just letting others see your real, imperfect story—it all strengthens the witness. Marriage isn’t a stage performance; it’s a daily opportunity to reflect the love we’ve received.

Paul Sheffield

And that’s where we’ll leave it today—marriage as God’s covenant, a spiritual discipline, and an everyday witness to the world. Kelly, as always, I appreciate your warmth and honesty. I’m grateful for all the questions you bring.

Kelly Ann Marino

Thanks, Paul—and thank you to everyone listening. We’ll dig deeper into family and parenting in next episodes, so stay tuned for that. For today, keep loving each other well, and remember—no one walks this journey alone. Paul, I’ll see you next time.

Paul Sheffield

You bet, Kelly. Take care, everyone.