Ten Minute Bible Talks Devotional Bible Study - What Is the Kingdom of God? | The Gospels | Mark 4:21–34

Episode Date: January 15, 2026

Is the kingdom of God just about going to heaven someday? Why does Jesus compare his kingdom to a mustard seed? And how is Jesus calling you to participate in its growth? In today’s episode, Patrick shares how Mark 4:21–34 reveals that the kingdom of God is not a sudden political takeover, but a slow, powerful work of heaven coming to earth through surrendered lives. Read the Bible with us in 2026! This year, we’re exploring the Gospels—Matthew, Mark, Luke, and John. Download your reading plan now. Want to learn even more about the Gospels? Tune into Not Just Sunday. Your support makes TMBT possible. Ten Minute Bible Talks is a crowd-funded project. Join the TMBTeam to reach more people with the Bible. Give now. Like this content? Make sure to leave us a rating and share it so that others can find it, too. Use #asktmbt to connect with us, ask questions, and suggest topics. We'd love to hear from you! To learn more, visit our website and follow us on Instagram, Facebook, and Twitter @TenMinuteBibleTalks. Don't forget to subscribe to the TMBT Newsletter here. Passage: Mark 4:21-34

Welcome to 10-minute Bible Talks, where we connect the Bible to your life. In the time it takes to get to work. I'm Patrick Miller. What do you think of when you hear the word kingdom? I recently took my kids to Disney World, and while we were there, we visited the Magic Kingdom, which was magical, fun rides and a giant Disney castle. Now, the reality is, for my daughter, when she hears the word kingdom, she probably does think of Disney stories and fairy tales. But obviously for the rest of us, when we hear Kingdom, we're not thinking, of Cinderella and fairy godmothers and beauty and the beast or whatever else might come to mind for my nine-year-old. Instead, when we hear kingdom, we probably think of political entities,

even though those feel like they're very distant and in the past. When I was first a Christian and I started reading through the Gospels, I often came across this phrase, the kingdom of God. What comes to mind when you hear that phrase? I can tell you what I thought about when I read it. I thought of the kingdom of God as heaven, which in a sense is true, but not so much, heaven as in the place where God rules and God reigns, more so heaven is the place where I go when I die. And so whenever Jesus spoke about the kingdom of God, I just defaulted to the assumption that he was talking about how to not go to the bad place and how to get to the good place. But what comes to your mind when you read the kingdom of God? You see, back in Jesus' day, when he spoke about the kingdom of

God, something would have come to the minds of his original audience. And for them, kingdoms weren't something in the past. They were very earthly, reality. They lived in the Roman Empire, which was a kingdom, and there were other kingdoms outside of the Roman Empire that were competing with it. And so if you asked an ancient Jew, what was the kingdom of God? They likely would have said, well, the kingdom of God and this idea of the kingdom of God coming, that's God coming to establish a new political reality, a new political entity. They expected that God would show up all at once to overthrow the Romans and overthrow all powers that stood in opposition to him. What about you again? When you hear a kingdom of God, or you you like me, do you think about heaven the place I go when I die? Are you like the ancient Jews? Oh no, we're talking about a political reality that will show up all at once. Well, Jesus understood that this phrase, the kingdom of God, was going to be loaded for people, not just in his time, but people in every time. And he wanted to make sure that we all understand what he meant when he talked about it. Mark chapter 4 is actually the longest discourse in the entire gospel of Mark. And perhaps it's no

surprise that the entire discourse is answering the question, what is the kingdom of God? I say it's not a surprise because in Mark's gospel, the kingdom of God is the thing that Jesus keeps bringing up over and over and over again. The most famous parable inside of these series of parables is the one that we talked about yesterday. It's the parable of the sower. And in that parable, Jesus compares the kingdom of God to a seed that's sewn on the ground. And he says that the result of that seed vary on the kind of soil that it lands upon. The soil, and in the parable, the soil is the human heart, the heart of Jesus' listeners. He said that some people can't even hear the good news of the kingdom. He said that others, they get excited about the kingdom of God, but then they move on to the next shiny thing.

He said there's still others who buy in but then sell out when things get tough. And yet there's still another group who receive this kingdom message, and they end up producing fruit, results that are 10, 30, or even 60 times greater than what that single seed should have yielded. Like a good harvest, they're going to feed the entire community. They're going to become a blessing to the world. Now, after this story, Jesus tells several other parables about what the kingdom of God is. And he's not doing this to confuse us. He's doing this to let us in on the secret. What is the kingdom of God according to him? Let's pick up in verse 26. And he said, the kingdom of God is as if a man should scatter seed on the ground. He sleeps and rises night and day, and the seed sprouts and grows.

He knows not how. The earth produces by itself, first the blade, then the ear, then the full grain in the ear. But when the grain is ripe, at once he puts out the sickle because the harvest has come. Now, this first parable would have been a total confrontation with Jesus' original listeners, because remember, they thought that the kingdom of God was going to come all at once. In a sudden rush, He was going to appear and defeat their enemies. There was going to be a spiritual and physical blitzkrieg that would change everything. But the metaphor Jesus uses here for the kingdom of God is not a sudden one. Instead, he's using an organic metaphor.

He's saying, you expect the kingdom to come all at once, but it doesn't. It's like a seed that grows slowly over time. And it grows in ways that are imperceptible. And it grows in ways that are outside of your control. Remember, the farmer, the one who sews the seed, he can't control when the seed grows up into a full head of grain. And so he's telling his listeners, you expect the kingdom of God to be a war to come all at once. But he wasn't just confronting them. I think he also confronts us. Because when we think about the kingdom of God, again, we often think

about heaven and we think Jesus is talking about where we go when we die. But the metaphor being used here isn't about heaven. It's about the earth. In fact, the kingdom of God is sprouting up from the earth. And so if we think that Jesus is talking about how to go to the good place, this parable confronts us right away, and it says, no, the kingdom of God is something that happens on earth and blossoms slowly. Jesus continues with another parable in verse 30, and he said, with what can we compare the kingdom of God, or what parable shall we use for it? It is like a grain of mustard seed, which, when sown on the ground, is the smallest of all the seeds on the earth. Yet, when it is sown, it grows up and becomes larger than all the garden plants and puts out large branches

so that the birds of the air can make their nest in the shade. Now again, this is a confrontation both to his original audience and to us. Yet again, it's a slow metaphor, a seed being planted and growing up slowly, but it's also an earthy metaphor. He's saying that the kingdom of God, it grows on earth. So it's clear, Jesus's kingdom language, it doesn't fit the ancient Jewish expectations, nor does it fit our expectations about dying and going to heaven.

No, the reality is that this picture of the kingdom of the kingdom of of God, it actually comes from the Old Testament. And in the Old Testament, the prophets looked forward to a day when God would clean up the mess that humans had made and put the world back into joint. In a prophecy from Isaiah, we read one of the earliest uses of the phrase gospel or good news. Isaiah wrote, How beautiful on the mountains are the feet of those who bring good news or the gospel, who proclaim peace, who bring good tidings, who proclaim salvation, who say to Zion, that's Jerusalem, him, your God reigns. You see, that's the gospel according to Isaiah. It's not that you'll go to heaven when you die, even if that's true. The good news, the gospel, is that God's reign is coming to earth.

It's your God reigns. In fact, that's precisely what Jesus meant when he spoke about the gospel of the kingdom in Mark 1115. He was saying that God has returned in him to reestablish his reign, to borrow a phrase from Jesus, on earth as in heaven. In other words, the kingdom of God, isn't about us going up to heaven, the kingdom of God is about heaven coming down to earth. And Jesus is saying that this ancient story that Israel told it's finally coming to its grand conclusion in him. God has returned to rain, not by pulling the escape hatch and sucking all the Christians up to heaven, but by coming down to earth himself. He's returned to rain by being a human. And unlike what his Jewish counterparts would have expected, it doesn't happen all at once. No, his kingdom

is going to grow slowly out of small things, and it's going to start in the human heart. You see, the kingdom of God begins to bear fruit in our life when we see how Jesus loved his enemies, you and me, and then died to forgive us. And when that love sinks so deep into your heart that you begin to love your own enemies and forgive those who hurt you just like Jesus did, that's the kingdom of God slowly growing. The kingdom of God grows in small acts that blossom out of Jesus's love for us. And that's why he uses this picture of a mustard tree. You see, he says, when the tree gets large, birds come and they take rest in its branches. He's saying that his kingdom, when it takes root in human hearts and begins to grow on earth, it becomes a home for those who are

hurting. It becomes a place of rest for those who are busy. It becomes a place of worship for those who have been overwhelmed by idolatry. And so what's the kingdom of God? Where do we see it? Well, you'll see it when you're gracious and patient with a spouse's frustrating habits, or you'll show it when you show kindness to a coworker whose words to you have been poisonous. We live it out when we assume the best about someone who maybe deserves the worst, when we become like this tree that's giving life to people, a place for rest, a place to be fed spiritually. The kingdom of God comes when we serve those who are weak and small.

The kingdom of God is changing diapers with joy. It's cleaning your roommate's dishes even though you shouldn't have to. It's serving at the local food bank. It's inviting a single mom over to your house to have dinner. The kingdom of God is what happens when heaven comes to earth, when God's rain comes on earth. And his rain doesn't come through violence or power. It doesn't come in a blitzkrie. It comes when his followers submit themselves to him with joy and gratitude and serve the world around them. So how is Jesus calling you to be a part of this kingdom, to join its slow growth, to become the hospitable sort of person that gives life to your community, that serves those who are in need? He's like a mustard seed who knows that your smallest little axe that seems so tiny can often grow into a tree for those who are needy and hurting.