“He put another parable before them, saying, ‘The kingdom of heaven is like a grain of mustard seed that a man took and sowed in his field. It is the smallest of all seeds, but when it has grown it is larger than all the garden plants and becomes a tree, so that the birds of the air come and make nests in its branches.’
He told them another parable. ‘The kingdom of heaven is like leaven that a woman took and hid in three measures of flour, till it was all leavened.'” – Matthew 13:31-33
Have you ever been disappointed by small beginnings? Maybe it was a business that started with just a handful of customers, a relationship that began with an awkward first date, or a new skill where progress seemed painfully slow. We humans tend to equate significance with size and immediate impact.
But Jesus turns this thinking upside down with two brief but powerful parables about how God’s kingdom grows. These twin parables—the Mustard Seed and the Leaven—teach us to recognize the extraordinary potential hidden in seemingly ordinary beginnings.
Small Beginnings, Surprising Growth
“The kingdom of heaven is like a grain of mustard seed…” Jesus begins. His first-century audience would have immediately recognized the mustard seed as proverbially tiny. Though not literally the smallest seed in existence (as some critics are quick to point out), it was commonly used to represent something extremely small—much like we might say “a drop in the bucket” today.
The contrast Jesus draws is striking: this tiny seed eventually becomes “larger than all the garden plants and becomes a tree.” Anyone who has seen a mature mustard plant knows it’s impressive—growing up to 10-15 feet tall in the right conditions, with branches substantial enough for birds to perch on.
Jesus follows this with a parallel example: “The kingdom of heaven is like leaven that a woman took and hid in three measures of flour.” Again, we see something small (a bit of leaven or yeast) being mixed into something much larger (enough flour to make bread for 100 people). The small amount of leaven eventually transforms the entire batch.
Both parables make the same fundamental point: God’s kingdom may start small and unimpressive, but it grows to have an impact far beyond what its beginnings would suggest.
The Kingdom’s Humble Debut
These parables would have been particularly relevant to Jesus’ original audience. Many Jews expected the Messiah to arrive with military might and political power, immediately overthrowing Roman rule and establishing God’s kingdom in dramatic fashion.
Instead, Jesus came as a humble carpenter’s son from an insignificant town. His inner circle consisted not of influential leaders but ordinary fishermen and even a despised tax collector. His ministry focused not on political revolution but on teaching, healing, and forming a small community of followers.
To many, this seemed utterly inadequate. How could this possibly be the kingdom they had been waiting for?
Jesus’ parables reassured His followers that the seemingly modest beginning of His ministry didn’t indicate insignificance but rather followed God’s pattern of working. The kingdom would indeed transform the world—not through immediate domination but through gradual, persistent growth from small beginnings.
Different Kinds of Growth
While making the same basic point, these two parables highlight different aspects of kingdom growth:
The Mustard Seed emphasizes external growth and expansion. The tiny seed becomes a visible, substantial plant that provides shelter for birds. This represents how God’s kingdom grows from a small group of followers to a worldwide community that offers spiritual shelter to people from all nations.
The Leaven emphasizes internal transformation and permeation. The yeast works invisibly but thoroughly, eventually affecting every part of the dough. This represents how God’s kingdom permeates society and transforms culture from within, often in ways that aren’t immediately visible but are nonetheless profound.
Together, these parables give us a complete picture of kingdom growth—both outward expansion and inward transformation.
Growth That Defies Expectations
There’s something else worth noting about these parables: the growth they describe is somewhat surprising or even subversive.
In the case of the mustard seed, Jesus says it becomes a “tree” where birds nest. While mustard plants can grow quite large, calling them “trees” is a bit of a stretch. Some scholars suggest Jesus may be deliberately echoing Ezekiel 17:23 and Daniel 4:12, where mighty kingdoms are depicted as great trees where birds nest. If so, He’s making a subtle but powerful point: God’s kingdom will ultimately surpass the mighty empires of the world, despite its humble origins.
Similarly, leaven or yeast typically carried negative connotations in Jewish thought, often symbolizing corruption or sin (as when Jesus warned about the “leaven of the Pharisees”). By using leaven as a positive metaphor for God’s kingdom, Jesus challenges conventional thinking and suggests His kingdom works in unexpected ways.
Patience in the Process
Perhaps the most practical lesson from these parables is the need for patience. Neither the mustard seed nor the leaven produces immediate results. The seed must be planted and given time to grow. The leaven must be mixed in and allowed to work gradually through the dough.
This challenges our culture’s obsession with instant results and quick fixes. God’s kingdom doesn’t typically advance through dramatic, overnight transformations but through consistent, gradual growth that compounds over time.
This has several important implications:
- We need patience with global kingdom growth
The complete transformation Jesus inaugurated is still unfolding. When we look at the world and see how much remains broken and opposed to God’s ways, we might grow discouraged. These parables remind us that the kingdom is still growing—and will continue until it reaches its full extent. - We need patience with local kingdom work
Church planting, community outreach, justice initiatives—all kingdom work typically starts small and grows gradually. Success shouldn’t be measured by immediate size or impact but by faithful planting and cultivating. - We need patience with personal kingdom growth
The kingdom grows within us just as it does in the world. Spiritual formation and character development happen gradually, often imperceptibly day by day, yet with profound cumulative effect.
As Eugene Peterson famously described spiritual growth, it’s “a long obedience in the same direction.” These parables affirm that this patient, persistent approach aligns perfectly with how God’s kingdom advances.
Finding Hope in Small Beginnings
These parables offer tremendous encouragement when we feel our contributions to God’s kingdom are small or insignificant:
- The prayer that seems too simple to matter
- The act of kindness that feels like a drop in the ocean
- The gospel conversation that doesn’t bring immediate conversion
- The small group that hasn’t yet grown into a movement
- The personal habit of spiritual discipline that shows no dramatic results
Jesus assures us that in God’s economy, small doesn’t mean insignificant. The mustard seed and leaven remind us that God specializes in bringing significant outcomes from modest beginnings.
As Paul wrote to the Corinthians, “I planted, Apollos watered, but God gave the growth” (1 Corinthians 3:6). Our responsibility is faithful planting and cultivating; the growth itself comes from God’s power working through natural processes over time.
Living in Light of Kingdom Growth
How then should we live in light of these kingdom growth principles?
- Value small beginnings
Don’t despise the day of small things (Zechariah 4:10). Recognize that significant impact often starts with seemingly insignificant actions. - Practice faithful presence
Like leaven permeating dough, we influence our surroundings through consistent, faithful presence in our families, workplaces, and communities. - Invest in gradual processes
Commit to activities that compound over time: discipleship, mentoring, character formation, community building. - Look for hidden growth
Learn to recognize kingdom growth that might not be immediately visible or measurable but is nonetheless real and significant. - Trust God’s timing
Release the need for immediate, visible results and trust that God is working according to His perfect timetable.
The kingdom Jesus inaugurated continues to grow today—both around us and within us. Sometimes this growth is dramatic and visible; more often it’s gradual and subtle. But whether we can see it clearly or not, the promise of these parables remains: what begins as a mustard seed will become a tree; what starts as a pinch of leaven will transform the whole batch.
Next week, we’ll explore the parables of the Hidden Treasure and the Pearl of Great Price, discovering the surpassing value of God’s kingdom and what it means to respond with wholehearted commitment.