Luke 13:21 (KJV)

What does Luke 13:21 mean?

Luke 13:21 describes Jesus comparing the kingdom of God to leaven (yeast) that a woman mixes into a large amount of flour until all the dough is affected. The image is of something small and hidden working quietly but thoroughly to change the whole.

In this verse, Jesus is speaking to a crowd, using a simple, everyday example from baking to help people understand how God’s kingdom grows. The story points to the way something seemingly insignificant can have a powerful and complete effect over time, even if it starts unnoticed.

The Greek behind Luke 13:21

• “Leaven” (ζύμη, zýmē) refers to yeast or a fermenting agent. In this context, it is often understood as a symbol of influence that spreads throughout something larger, not always negative as elsewhere in the Bible.
• “Hid” (ἔκρυψεν, ekrypsen) means to conceal or mix in so that it is not visible. This suggests the kingdom’s work can be unseen at first, but still active.
• “Three measures” (σάτα τρία, sata tria) is a large amount of flour, enough to make bread for many people. This detail highlights the thoroughness and reach of the leaven’s effect.

Why Luke 13:21 matters

• Luke 13:21 clears up the idea that God’s kingdom always arrives in obvious or dramatic ways; instead, it can begin quietly and grow steadily.
• The verse emphasizes the transforming power of God’s work, which can start small but eventually changes everything it touches.
• This parable connects with the surrounding verses, where Jesus uses everyday images to help listeners grasp the surprising and often hidden ways God’s reign spreads in the world.