In this illuminating episode of The Reformed Brotherhood, Jesse and Tony explore Jesus' parables of the mustard seed and leaven found in Matthew 13. These seemingly simple parables reveal profound truths about God's kingdom—how it begins imperceptibly, grows irresistibly, and transforms completely. The hosts delve into what these parables teach us about God's sovereign work in both our individual spiritual lives and the broader advance of His kingdom in the world. Believers can find hope in understanding that God intentionally works through what appears weak and insignificant to accomplish His purposes. This episode offers practical encouragement for Christians who may feel discouraged by the apparent smallness of their faith or ministry impact.

Key Takeaways

• The kingdom of heaven begins in small, hidden, or seemingly insignificant ways, but grows powerfully through God's sovereign work.
• The mustard seed illustrates the kingdom's visible expansion (extensive growth), while the leaven highlights its internal transformative influence (intensive growth).
• Both parables emphasize that God's kingdom often appears to "disappear" initially but produces outsized results through His work, not our own.
• These parables provide encouragement for times when the church feels weak or our personal faith feels insufficient—God's power is made perfect in weakness.
• God's kingdom transforms both outwardly (extensive growth illustrated by the mustard seed) and inwardly (intensive growth shown by the leaven).
• Cultural transformation happens most effectively through ordinary Christian faithfulness rather than flashy or provocative engagement.
• Christians should not despise small beginnings, recognizing that faithfulness rather than visibility is the true measure of fruitfulness.

Understanding Kingdom Growth: From Imperceptible to Unstoppable

The parables of the mustard seed and leaven powerfully illustrate the paradoxical nature of God's kingdom. In both cases, something tiny and seemingly insignificant produces results far beyond what anyone would expect. As Tony noted in the discussion, what's critical is understanding the full comparison Jesus makes—the kingdom isn't simply like a seed or leaven in isolation, but like the entire process of planting and growth. Both parables involve something that initially "disappears" from sight (the seed buried in soil, the leaven mixed into dough) before producing its effect.

This reflects the upside-down nature of God's kingdom work, where what appears weak becomes the channel of divine power. For first-century Jewish listeners expecting a triumphant, militaristic Messiah, Jesus' description of the kingdom as beginning small would have seemed offensive or disappointing. Yet this is precisely God's pattern—beginning with what appears weak to demonstrate His sovereign power. This same pattern is evident in the incarnation itself, where God's kingdom arrived not through military conquest but through a humble birth and ultimately through the cross.

Finding Hope When Faith Feels Small

One of the most practical applications from these parables is the encouragement they offer when we feel our faith is insufficient or when the church appears weak. As Jesse noted, "God is always working. Even when we don't feel or see that He is, He's always working." The kingdom of God advances not through human strength or visibility but through God's sovereign work.

These parables remind us that spiritual growth often happens imperceptibly—like bread rising or a seed growing. We may go through seasons where our spiritual life feels dry or stagnant, yet God continues His sanctifying work. Just as a baker must be patient while bread rises, we must trust the invisible work of the Holy Spirit in our lives and in the church. When we feel discouraged by apparent lack of progress, these parables assure us that God's kingdom—both in our hearts and in the world—is advancing according to His perfect timing and plan.

As Tony explained, "The fact that it feels and looks and may actually be very small does not rob it of its power...in actuality that smallness is its power." God deliberately works through weakness to display His glory, making these parables powerful reminders for believers in any era who may feel their impact is too small to matter.

Memorable Quotes

"We shouldn't despise small beginnings. Let's not despise whatever it is that you're doing in service to God, to your family, to your churches, especially in the proclamation of the gospel... Faithfulness and not visibility—that's the measure of fruitfulness." — Jesse Schwamb

"The Kingdom of Heaven is at work not only in our midst as a corporate body, but in each of us as well. God's grace and His special providence and His spirit of sanctification, the Holy Spirit is the spirit of holiness and the one who makes us holy. He is doing that whether it feels like it or not, whether we see outward progress or not." — Tony Arsenal

"What cultural transformation looks like is a man who gets married and loves his wife well, serves her and sacrifices for her, and makes a bunch of babies and brings them to church... We transform culture by being honest, having integrity, by working hard... without a lot of fanfare, without seeking a lot of accolades." — Tony Arsenal

Full Transcript

Jesse Schwamb: Welcome to episode 468 of The Reformed Brotherhood. I'm Jesse.

Tony Arsenal: And I'm Tony. And this is the podcast with ears to hear. Hey brother.

Jesse Schwamb: Hey, brother, you and I have said it over and over again. One of the incredible truths that the Bible conveys about the kingdom of God is that it's inaugurated in weakness.

It's hidden. It advances irresistibly by the sovereign work of God through the Word and the Spirit. It transforms both individuals and nations until Christ's reign is fully revealed in glory. And so as we're about to talk about parables today, I can't help but think if that's one of the central positions of the Bible, and I think we both say it is how would you communicate that?

And here we find Jesus, the son of God, our great savior, you know where he goes. He goes, mustard seeds and yeast. So that's what we're gonna talk about today. And if you're just joining us maybe for the first time or you're jumping into this little series, which is to say, we do know tiny series, this long series on parables, you, I go back to the last episode, which is kind of a two-parter because Tony and I tried this experiment where we basically each separately recorded our own thoughts and conversation, almost an inner monologue as we digested each of those parables, both the one of the mustard seed and then the leaven sequentially and separately.

And now we're coming together in this episode to kind of talk about it together and to see what we thought of the individual work and to bring it all together in this grand conversation about the kingdom of God that's inaugurated and weakness and hiddenness.

[00:02:31 ] Affirmations and Denials Explained

Jesse Schwamb: So that's this episode, but it wouldn't be a episode without a little affirming.

And a little denying it seems, 22, we should this, every now and again we pause to say why we do the affirmations and denials. Why, why do we do this? What, what is this whole thing? Why are we bringing it into our little conversation every time?

Tony Arsenal: Yeah. I mean, it, it, at its core, it's kind of like a recommendation or an anti recommendation segment.

We take something that we like or we don't like and we spend a little bit of time talking about it. Usually it ends up taking a little bit of a theological bent just 'cause that's who we are and that's what we do. And we use the language of affirmations and denials, uh, because that's classic, like reformed confessional language.

Right? If you look at something like the, um. I dunno, like the Chicago statement on Biblical and Errancy, which was primarily written by RC sprawl, um, it usually has a, a statement, uh, of doctrine in the form of things that we affirm and things that we deny. Um, or you look at someone like Turin, a lot of times in his, uh, institutes of elected theology.

He'll have something like, we affirm this with the Lutherans, or we affirm that or de deny that against the papus or something like that. So it's just a, a little bit of a fun gimmick that we've added on top of this to sort of give it a little bit of its own reformed flavor, uh, onto something that's otherwise somewhat, um, Baal or, or I don't know, sort of vanilla.

So we like it. It's a good chance for us to chat, kind of timestamps the episode with where we are in time. And usually, usually, like I said, we end up with something sort of theological out of it. 'cause that's, that's just the nature of us and that's, that's the way it goes. That's, and that's what happens, like when we're talking about stuff we.

Like when we're together at Christmas or at the beach, like things take that theological shift because that's just who, who we are, and that's what we're thinking about.

Jesse Schwamb: By the way, that sounds like a new CBS drama coming this fall. The nature of us.

Tony Arsenal: The nature of us? Yeah. Or like a, like a hallmark channel.

Jesse Schwamb: It does, uh,

Tony Arsenal: it's like a a, I'm picturing like the, the big city girl who moves out to take a job as a journalist in like Yosemite and falls in love with the park ranger and it's called The Nature of Us.

Jesse Schwamb: The nature of us Yes. Coming this fa