Introduction
Two parables, three verses, two images: a seed and a little yeast. There is no throne, no army, no palace. Just a man sowing in a field and a woman working flour in her house. Yet, as Malcolm Duncan puts it, "if we want to understand the Kingdom of Heaven, we must pay attention to two ordinary actions."
This message, preached at Kensington Temple, is part of a series on the parables of the kingdom in the Gospel of Matthew. The series title is borrowed from a book by Old Testament scholar Walter Brueggemann, Texts That Linger, Words That Explode. The preacher warns that we should not confuse brevity with simplicity.
These parables do not first ask whether the kingdom will grow. They ask a deeper question: how does God exercise his reign in the world? What kingdom begins without visible force? What authority works without announcing itself? Malcolm Duncan answers in four points, then shows why the seed and the yeast belong together.
Message Outline
1. Two Ordinary Actions in a World of Empires
- Jesus announces the kingdom in a world full of kingdoms. Israel lives under Roman occupation. Caesar has soldiers, architecture, taxes and a political machine. Herod has his palace, and the religious establishment has the temple. Every recognized authority puts its power on display.
- Jesus, for his part, shows a seed you can hold between two fingers and yeast that disappears into the dough.
- The context matters. In Matthew 12, the Pharisees plot to put him to death and attribute the work of the Holy Spirit to the devil. Even his own family stands outside to speak to him. Then come the parable of the sower and the parable of the wheat and the weeds.
- On the parable of the sower, the preacher reminds us that it is not about four categories of people but about four possible responses within a single heart: "Never read a parable by pointing at someone else. Listen first for yourself."
- The disciples no doubt wonder: if Jesus is the Messiah, why are the Romans still here? Why so much rejection? Jesus' answer does not deny how small his ministry is, carried out over a few square miles, with no press releases. But smallness does not contradict the kingdom, hidden work does not mean God is absent, and the present mixture does not mean God has lost control.
2. The Kingdom Is Present Before It Is Visible
- Jesus does not say the kingdom is like a great tree, but like a grain of mustard seed "which a man took and sowed in his field" (Matthew 13:31). A single seed, sown deliberately, unlike the sower who scattered seed everywhere.
- The seed does not end up in the field by accident. The coming of Jesus is neither God's reaction to circumstances nor a plan B. Where the king is, there is the kingdom. He proclaims it ("Repent! For the Kingdom of Heaven is at hand," Matthew 4:17), he demonstrates it by healing, delivering and raising the dead, and he sends his disciples to do the same (Matthew 10).
- But the way he comes is surprising: he comes from Nazareth ("Can any good thing come out of Nazareth?"), he gathers fishermen and a tax collector instead of soldiers, and he does not take Jerusalem on horseback. Jesus is saying, in essence: do not judge the ultimate reach of my ministry by its appearance.
- Luke places the two parables right after the healing of a woman who had been bent over for eighteen years, whom Jesus calls a "daughter of Abraham" and whom Satan had kept bound (Luke 13:10-21). The kingdom can appear in a single restored life. A healing is not insignificant because it is small.
- In Pentecostal circles, we have sometimes learned to recognize God only in what is big, immediate and spectacular. Yet a reconciliation between two people, a child patiently raised in the ways of the Lord, a believer who refuses corruption at work, a home group that cares for an isolated member, a church that faithfully prays for its city: these are mustard seeds. Small, but holy.
- Jesus is not praising laziness or a narrow vision, though. "God's work must not be judged by its size but by its authenticity": by its source, its character and its promised outcome.
- Faith as small as a mustard seed can move a mountain (Matthew 17:20) or uproot a sycamore tree (Luke 17:6). "Don't have faith in your faith. Have faith in Jesus." Faith is effective not because of its size, but because of where it is placed.
- Unhealthy things grow too, often faster than healthy ones. Do not conclude that a big ministry is blessed, or that a small church is unfaithful. The preacher mentions churches of 20 to 100 people that have been faithful for decades. The right questions are: Did God plant it? Does it carry the life of Christ? Are we faithfully tending it? Are we entrusting its growth to him?
3. The Kingdom Becomes a Place Where Others Can Dwell
- The seed becomes a tree, "so that the birds of the air come and lodge in its branches" (Matthew 13:32). The surprise is not only the growth, but what the growth makes possible.
- The image of the tree has a biblical background. In Daniel 4, Nebuchadnezzar dreams of a great tree where the birds of the air make their home: it is his empire, cut down because he confused political greatness with ultimate sovereignty. In Ezekiel 31, Assyria is described the same way and falls because of pride.
- In Ezekiel 17:22-24, God promises to plant a tender shoot on the mountain of Israel, under which birds of every kind will rest. God brings down the high tree and lifts up the low tree. Jesus borrows this language: Babylon, Assyria and now Rome saw themselves as great trees, but God's tree will be established neither by military power nor by imperial pride. It will come through a crucified Messiah.
- The tree does not exist to be admired. This exposes part of our language about the church: "Look how big we are, look how many services we hold." The growth of the kingdom creates room: for the person who has never set foot in a church, for the believer burdened with unanswered questions, for children and the elderly, for the refugee, the executive, the student, the single parent, the person in recovery.
- In a city like London, you can be surrounded by millions of people and have no place to call home, succeed professionally and be "relationally homeless." The church is called to be more than an audience gathered in front of a stage.
- A Pentecostal church can fall into the trap of measuring its spiritual health by the intensity of its worship. We must also ask: can people find shelter here from shame without having to hide their sin? Truth without humiliation? Mercy without manipulation? A family without control?
- John Chrysostom saw the disciples themselves in the mustard seed: weak and insignificant in appearance, yet carrying a gospel that has crossed the world. Origen, Hilary of Poitiers, Jerome and Augustine also speak of this gospel carried by ordinary people. The greatness was not that of the messengers, but that of the message.
- A great tree can forget why it has branches: Christian institutions can become proud and preoccupied with their own survival. "Do not pray: Lord, make us bigger. Pray: Lord, make us trustworthy for those to whom you give room."
4. The Kingdom Works Through the Whole Person and the Whole World
- "The Kingdom of Heaven is like yeast, which a woman took, and hid in three measures of flour, until it was all leavened" (Matthew 13:33). We move from the field to the house, from the man to the woman, from visible growth to hidden transformation. The two images interpret each other.
- Three measures of flour is an enormous quantity, enough to feed a whole household. The preacher, who grew up in a family of seven, remembers the seven-pound bag of potatoes he peeled every evening. The expression recalls Genesis 18:6, where Abraham asks Sarah for three measures of fine flour for his visitors: a picture of generous hospitality.
- Matthew uses a striking verb: more literally, the woman "hid" the yeast in the flour. It disappears but never stops working. We serve a patient God. We want instant results, but they are often superficial.
- The kingdom reaches attitudes and not only behavior, the imagination and not only our speech. It touches "my money, my relationships, my sexuality, my ambitions, my understanding of power, my prejudices, my wounds," and leaves none of them aside. The woman does not put the yeast in one corner of the dough: she kneads it through the whole mass, and it is exhausting work. Jesus refuses to be one interest among others.
- Yeast is often negative in the Bible: Israel removes it from their houses at Passover (Exodus 12), Jesus warns against the yeast of the Pharisees (Matthew 16:6, Mark 8:15), which is hypocrisy (Luke 12:1), and Paul reminds us that "a little yeast leavens the whole lump" (1 Corinthians 5:6, Galatians 5:9).
- Is yeast good or bad? It spreads, and its value depends on what it spreads. Hypocrisy, corruption, false teaching, tolerated injustice, fear, cynicism and gossip are bad yeast that poisons a whole community. But grace, truth and holiness are also yeast.
- A family can be leavened by resentment or by a single act of forgiveness. A leadership team can be leavened by insecurity, a workplace by fear or by a Christian who combines competence with integrity. The preacher mentions a recent men's gathering "leavened by vulnerability": something happened throughout the whole assembly.
- The Holy Spirit is not given merely to create a moment in a meeting. At Pentecost, the community devotes itself to the apostles' teaching, fellowship, the breaking of bread and prayers (Acts 2:42). Wynne Lewis, who led Kensington Temple for ten years, saw one of the great dangers of British Pentecostalism in reducing everything to speaking in tongues. For the preacher, "a church filled with the Spirit should produce disciples shaped by the Spirit."
- Yeast does not destroy the dough by trying to turn it into yeast. "I am not the flour. I am the yeast." If salt loses its flavor, what good is it? If yeast is no longer yeast, what good is it?
5. Patient Trust and Present Obedience
- Both parables move toward completion: the seed becomes a tree, the yeast works "until" all the dough is leavened. The kingdom is not an experiment with an uncertain outcome. Yet Jesus still teaches us to pray: "Let your Kingdom come" (Matthew 6:10). The kingdom is present, not yet fully manifested.
- This guards us from two errors. The first is despair, which looks at violence, injustice, loneliness and broken families and concludes that nothing has changed. When someone asked him why not everyone is healed, the preacher answered: "Because there is still sin. But I am not going to focus on sin. I am going to focus on the kingdom." The seed has been sown, the yeast is at work, Christ died, rose and will return.
- The second, arguably more dangerous, is triumphalism, which wants to make the kingdom fully visible by taking control. It wants the tree without the seed, the power of the resurrection without sharing in his sufferings. Yet the king entered Jerusalem on a donkey, washed his disciples' feet, refused the sword and defeated death by dying.
- This does not make the church passive: we serve, we seek justice because every person bears the image of God, we seek the peace of the city. But we do not confuse domination with witness. A leader calling himself a Christian does not guarantee a Christian ethic.
- Between despair and triumphalism, there is a narrow path called obedience. The sower sows, the woman kneads, but neither of them creates life. To those who are weary in ministry, in family life or in their witness: we do not produce the kingdom by our efforts. But we can be present, tell the truth, keep teaching our children, pray for the one who seems far from God, turn down dishonest opportunities, ask forgiveness, welcome the stranger, forgive again.
6. The Mustard Seed and the Yeast Belong Together
- With the mustard seed alone, we think only of expansion and visibility. With the yeast alone, we think only of inner transformation. The kingdom grows outward and inward: it creates a community that shelters and shapes holy lives. It has social consequences because Jesus is Lord of the whole world, and personal consequences because he is Lord of the whole person.
- Before speaking of the mustard seed, Jesus is himself the mustard seed: rejected, handed over, crucified outside the city, buried. In the eyes of the empire, he is finished. But the crucified one rises, the rejected stone becomes the cornerstone, and the gospel goes from Jerusalem to the ends of the earth.
- It would be absurd to keep a seed in a glass box to admire its potential. The preacher tells of buying yeast about ten years ago to bake bread every day: it is still in his cupboard. What good is yeast that is never put into the dough, or an encounter with God on Sunday that is not planted in tomorrow's decisions, your family and your home?
- The question is not to admire the seed and understand the yeast, but to live under the reign they reveal. "If you are a Christian, the seed has been sown in your life and the yeast is at work in you."
Key Takeaways
- God's kingdom is present before it is visible: its work is judged by its authenticity, not by its size.
- Don't have faith in your faith: the power of faith as small as a mustard seed comes from the One in whom it is placed.
- The tree of the kingdom grows so that others find shelter in its branches, not to be admired.
- The yeast of the kingdom permeates all of life, and every family, church or workplace is "leavened" by something.
- Between despair and triumphalism lies the path of faithful obedience, today.
Personal Application
- Have you dismissed someone, or some work, because it seemed too small to matter in God's eyes?
- Where are you demanding visibility when God may want to give you depth?
- What yeast is spreading in you right now: fear, pride, hypocrisy, resentment, or truth and grace?
- In which area of your life (money, relationships, ambitions, wounds) have you left Jesus out of the dough?
- What simple act of obedience can you take this week so that others find shelter, truth and a home with you?
Verses Cited
- Matthew 13:31-33
- Matthew 4:17
- Matthew 10:7-8
- John 1:46
- Mark 4:30-32
- Luke 13:10-21
- Matthew 17:20
- Luke 17:6
- Daniel 4
- Ezekiel 31
- Ezekiel 17:22-24
- Genesis 18:6
- Exodus 12:15
- Matthew 16:6
- Mark 8:15
- Luke 12:1
- 1 Corinthians 5:6-8
- Galatians 5:9
- Acts 2:42
- Matthew 5:13
- Matthew 6:10
Frequently Asked Questions
What does "the kingdom is present before it is visible" mean?
For Malcolm Duncan, the mustard seed shows that God acts deliberately, starting from a small beginning. Smallness does not contradict the kingdom, and hidden work does not mean God is absent. God's work is not judged by its size but by its authenticity: its source, its character and its promised outcome.
Why do the birds nest in the branches of the tree?
Jesus takes up the biblical image of great trees representing empires (Daniel 4, Ezekiel 31) and the promise of Ezekiel 17, where all kinds of birds dwell under a shoot planted by God. The tree of the kingdom does not grow to be admired: it grows so that others can find shelter, a home and security in it.
Isn't yeast always a negative image in the Bible?
Often, yes: the yeast of the Pharisees is hypocrisy, and Paul reminds us that a little yeast leavens the whole lump. Malcolm Duncan explains that yeast is first of all something that spreads. Its value depends on what it spreads. Hypocrisy, fear or gossip are bad yeast, but grace, truth and holiness are the yeast of the kingdom.
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