Tiny Seeds and Hidden Yeast: Luke 13:18-21

Part way through Jesus’ ministry, He shares a broad series of parables about God’s kingdom, and with these simple illustrations, we can discover some amazing truths about God’s kingdom. These illustrations have a way of actually showing us, regardless of the place we are in history, what God’s kingdom is like.

Both the gospels of Matthew and Luke include two short parables that are often grouped together. While many people will often default to Matthew’s gospel when reading them, let’s look at Luke’s version of these parables, and discover what we can learn about God’s kingdom through these two simple, but also profound illustrations.

We will be reading from the gospel of Luke, chapter 13, using the New Century Version of the Bible. Starting in verse 18:

¹⁸ Then Jesus said, “What is God’s kingdom like? What can I compare it with? ¹⁹ It is like a mustard seed that a man plants in his garden. The seed grows and becomes a tree, and the wild birds build nests in its branches.”

²⁰ Jesus said again, “What can I compare God’s kingdom with? ²¹ It is like yeast that a woman took and hid in a large tub of flour until it made all the dough rise.”

We’ll stop reading here because in these two parables are several profound thoughts.

The first idea that jumps out at me when I read this is a similar theme that is present in both parables. This theme says that God’s kingdom is growing or expanding. When we look at the first parable, the mustard seed, which happens to be among the smallest seeds around, grows into a well-sized tree. In the same way, God’s kingdom started very small, and it has been growing and expanding ever since.

In a similar way, the yeast parable describes a woman hiding yeast in a tub of flower. Chances are the yeast, when it was mixed into the flower was completely hidden, but when water was added to make dough, there was no denying that the yeast was present, because the yeast made the dough rise. Just like in the first parable, the tiny amount of yeast needed might seem insignificant when compared with the whole tub of flour, but it had a disproportionate affect on the dough. This is similar to the tiny mustard seed being insignificant, and similar to God’s kingdom appearing insignificant at first, but growing and affecting the world around it.

While the theme of growth is present in both parables, and because of this, we can conclude the theme of growth is a strong theme present in God’s kingdom as well, we can uncover more themes than just this shared one tucked within each parable when looking a little closer.

In the first parable, found in verse 19, Jesus says God’s kingdom “is like a mustard seed that a man plants in his garden. The seed grows and becomes a tree, and the wild birds build nests in its branches.”

Tucked in the mustard tree’s growth is a benefit we can discover. Jesus describes how wild birds will build nests in this tree’s branches. This seems like unnecessary information if Jesus simply wanted to tell those present about the growth nature of God’s kingdom, unless Jesus shares this as a way of describing one purpose for this growth.

In the case of a mustard tree, when it is grown, it exists as a place for wild birds to build their homes and rest. The wild birds are not opposed to the existence of the tree, but instead, they value its presence. In the same way, when God’s kingdom expands and affects the world around it, I believe God meant for this expansion to be beneficial for all those involved. When Christianity comes into an area or a region, it should enhance the lives of those present, it should love those who are present, and it should be something that is so beneficial that those in the area where it exists would hate to see it leave.

With this description, I see the church having failed in many ways. There are plenty of examples of unloving Christians. I am sure you may have met one or two in your life at some point. However, I want to point out that a Christian who is not loving, generous, and genuinely interested in helping those around him or her is not actually a Christian. When Jesus Christ walked this earth, He loved others, He was generous towards those who came to Him, and He was genuinely interested in helping those around Him, and this is who He called His followers to be.

If Jesus’ followers returned to this ideal, we could eventually shake off the hate-filled, and hostile stereotype that we as a whole have been branded with. The stereotype we should aim for is one where we forgive others too many times, love and care for others in over the top ways, and put others ahead of ourselves whenever we can. If we had a stereotype like this, we would be more accurately representing Jesus in the world around us.

But let’s shift over to the other parable. In verse 21, Jesus describes God’s kingdom “like yeast that a woman took and hid in a large tub of flour until it made all the dough rise.” In this description, we see the growth and expansion being internal and hidden. When the dough is first made, it is a small clump, but with the yeast present, the dough as a whole expands. Unlike the mustard tree that grows out of the ground, the yeast affects the entire area it was placed in, which in this case is the flour, water, and other ingredients placed in the dough.

In this second parable, we see God’s kingdom growing inside of each of us and growing in a more hidden way than in the first parable. While we can see the effects of this growth, and other people can see the effects perhaps even more clearly than we can, the growth itself is hidden within us. God’s kingdom in this second parable is hidden in our hearts and lives and it changes and affects our actions and our attitudes. These new actions and attitudes towards our circumstances are evidence that something is growing in our lives, and this something is the “yeast” of God’s kingdom.

Shifting our focus back onto looking at both parables, we can see two more themes and these two themes are connected. In both parables, we see a person intentionally placing the item representing God’s kingdom into the place where it is. In the first parable, a man plants the mustard seed in his garden, and in the second parable, a woman hides the yeast in the flour.

This shared theme says that God’s kingdom is placed intentionally in places where God wants it to grow, and chances are very high that one of the places God has planted a spiritual seed for His kingdom is within your heart. This also means that when we are a part of God’s kingdom, we can know and trust that He has placed us in exactly the place we need to be, and that where we are is where He wants us to be. While we might not know why we are where we are in life, He does and we can trust that He knows best.

The second half of this shared theme is the subtle truth that both seeds and yeast need water to grow. Water helps launch a seeds growth like water activates the yeast in a bowl of flour. Without water, both the yeast and the seed would stay dormant. This means that in our own lives, we must remain connected to the source of water, we might even call this water “the living water” in order to let God’s kingdom grow and expand in our lives. We stay connected to this source of life by intentionally focusing on God and intentionally moving towards God each and every day.

The best ways I know how to move towards God is through prayer and Bible study. With that said, as we come to the end of another podcast episode, here are the challenges I will leave you with:

Intentionally seek God first in your life and choose to prioritize Bible study and prayer in your daily routine.

Also, be sure to pray and study the Bible for yourself. While devotionals, pastors, or podcasts are good places to start, never settle for someone else’s knowledge and relationship when God wants a personal relationship with you. This is why I always recommend that you study the Bible for yourself, and if you need help getting started, I’m happy to help get you on the right track.

And as I end every set of challenges by saying in one way or another, never stop short of, back away from, chicken out of, or abandon where God wants to lead you to in your life with Him!