Built on What?

Matthew 7:24-27
Everyone then who hears these words of mine and does them will be like a wise man who built his house on rock. The rain fell, the floods came, and the winds blew and beat on that house, but it did not fall, because it had been founded on rock. And everyone who hears these words of mine and does not do them will be like a foolish man who built his house on sand. The rain fell, the floods came, and the winds blew and beat on that house, and it fell — and great was its fall!

Opening

I remember being told the story in Children’s Church, listening and imagining the house standing on solid rock while the rain poured down, and the other one collapsing in the sand. The lesson was memorized like a nursery rhyme: build on God’s word, or your life will collapse. The imagery was vivid enough to stick, but the moral was simple in a way I don’t think an eight-year-old fully understood.

You build on God’s word, you’re safe. You don’t, you’re doomed.

I still hear that parable sometimes, and I wonder — what if it was never about obedience at all?

A Different Reading

Matthew 7:24-27 is famously called the parable of the two builders. Jesus tells it at the end of the Sermon on the Mount, right after some of the most demanding ethical teaching in the New Testament. Turn the other cheek. Love your enemies. Give to anyone who asks. It’s the kind of teaching that makes people build things on rock — because we know, honestly, that without some kind of foundation, we can’t sustain it.

But notice what Jesus is actually doing here. He’s not talking about obedience as a way to avoid divine punishment. He’s doing something much deeper. He’s holding up a mirror to our convictions.

The rain doesn’t care whether you follow the preacher or belong to the congregation. The flood doesn’t check your church record before it rises. The wind that tests a foundation has no interest in your affiliation — it only tests whether what you’ve built rests on the real foundation of God’s word or the shifting sands of earthly culture wars.

And that’s where I think this parable gets personal for us today, because there are beliefs we hold that look solid right up until the wind picks up.

The Winds of Culture Wars

Let me name what many of us in this room already know: we live in a time when beliefs are tribal currency. You can usually tell what side of the culture wars someone is on by what they refuse to question. When the winds blow one way, everyone on your side suddenly has firm convictions that they would “never” abandon. But the wind shifts, they are shocked to discover those convictions were sand — built not on God’s word but on whatever tribe was shouting loudest at the moment.

I’m not caricaturing people on any side here. I’ve talked with good-faith Christians across the political spectrum. There are people who genuinely love God and their neighbors on every side. There are people who have read Scripture carefully and come to conclusions I disagree with on matters of justice, compassion, and inclusion, and who have arrived there through years of prayer and study. I honor that sincerity.

But sincerity is not the same thing as a foundation that holds.

When someone discovers that their convictions about immigration match the talking points of their political tribe exactly — down to the phrases they use — that’s not a foundation on rock. That’s a foundation on a podcast.

When someone discovers that their convictions about who is welcome at God’s table shift depending on who’s in power — that’s not a foundation on Scripture. That’s a foundation on whatever coalition happens to serve their interests this season.

None of this is new, of course. The prophets said it first: “My people are destroyed for lack of knowledge” (Hosea 4:6). They didn’t mean intellectual ignorance — they meant a refusal to really engage the God of Israel who consistently, exhaustively, inconveniently sides with the marginalized. Jeremiah called it a heart that is “deceitful above all things” (Jeremiah 17:9). Not the heart that doubts — the heart that confuses its own comfortable assumptions with God’s voice.

The Cross as Foundation

Here is where I need to be careful, because this parable has been used to build something that I think is backwards. It has been used to say: obey Jesus, avoid the storm, escape punishment. But the Christian story isn’t built on avoidance. It’s built on the cross.

If you want a foundation that holds, look to Calvary — because the cross is where God doesn’t pull us out of the storm. God enters the storm. God stands in the flood. God takes the full force of the winds on a body nailed to a cross so that when the storms come for the rest of us, we learn that the foundation of the Christian faith is not our own moral performance.

The resurrection is what comes after the flood, and it’s not a rescue from the storm but a promise that the storm does not have the last word. Resurrection doesn’t mean the house doesn’t fall. Resurrection means that what God loves cannot be destroyed, even when everything we’ve built on our own terms falls apart.

So when this parable asks us what we’re built on, the answer isn’t simply “God’s word” as an abstract rulebook. The answer is: God’s word as it was spoken by the one who stood in the rain, took the flood, and rose. That is the rock. That is the foundation that holds when everything else collapses.

Prophetic Application

This brings us to a question we don’t like to ask: what are we actually building on when it comes to how this faith community lives?

I want to be prophetic about one thing, because I believe the Gospel demands it.

When we talk about economic justice in this country, we are talking about a system that was designed to concentrate wealth at the expense of labor, race, and land. The Bible does not treat poverty as an unfortunate accident. It treats poverty as a structural wound — a breach in the covenant that God calls Israel to repair through Jubilee, through gleaning, through limits on wealth accumulation.

It is entirely possible to hold convictions about tax policy or wealth redistribution that track perfectly with your political tribe’s talking points, and to discover, when the economic winds shift, that your convictions were sand all along — because you built them on power, not on the God who repeatedly tells Israel that the land belongs to God, and that hoarding it is idolatry.

I want to be honest that this is one of the areas where a lot of good-faith Christians, including well-meaning church people, struggle. We want to believe that our financial decisions are shaped by Scripture. But when the wind blows from the direction of the wealthy donors in our own pews, it’s remarkable how many of us discover that our convictions about generosity are built on sand. Not because we’re evil. Because we’re human. Because God’s word on wealth and justice is genuinely uncomfortable for people with any amount of privilege.

The Mirror

So let me put the question back to you — I’m going to start with myself:

What would you have to give up if the wind shifted?

Not what you’d say if asked politely. What you’d have to un-believe. What community you’d have to leave. What identity you’d have to lose. What certainty you’d have to surrender.

If your convictions about who is welcome at God’s table require the exclusion of LGBTQ people — would you hold the same convictions if the cultural winds were blowing in the opposite direction?

If your convictions about the shape of our economic life require the continued extraction of wealth from labor — would you hold the same shape when the people profiting are no longer in your tribe?

If your convictions about the nation you live in require the marginalization of immigrants — would you hold them if you were the immigrant?

Not because I’m trying to shame anyone. Because the storm is coming. It’s already here for a lot of people in this room. And the question is never whether your foundation holds when everything is calm. The question is whether it holds when the flood is real.

Closing Benediction

Jesus’ words at the end of the Sermon on the Mount are not a threat. They’re a mirror. They are asking us, with radical honesty, what we trust, what we build on, and whether we’re brave enough to test it.

The foundation that holds is not our conviction. It is God’s love — demonstrated on a cross, confirmed in a resurrection, poured out on a storm-tossed world that was told, from the beginning, that it was good, and is still good, even when everything we’ve built falls away.

Build on that.

And when the flood comes — and it will — may we discover together that what we’ve built on love can hold us, because it was built on the One who held us first.

May the words of my mouth and the meditations of all our hearts be acceptable in your sight, O Lord, my rock and my fortress, the one foundation that does not fall. Amen.