The Parable of the Leaven is found in both the Gospel of Matthew 13:33 and the Gospel of Luke 13:20-21. In this parable, Jesus compares the kingdom of heaven to leaven that a woman mixes into a large amount of flour until it is all leavened. This imagery illustrates how the small, hidden work of God in the hearts of individuals can gradually transform and expand to have a significant impact on the world.

In both references, the key message is the hidden, transformative power of the kingdom of God at work in the world. The similarities between the two accounts emphasize the subtle but pervasive influence of the kingdom of God in people's lives.

This passage is important because it reminds believers of the transformative power of God's kingdom and encourages them to have faith in the gradual, unseen work of God in their lives. It serves as a daily application for readers to be patient and trust in God's timing as they seek to live out their faith and be agents of God's transformative work in the world.

While the Parable of the Leaven is not found in other parts of the Gospels, its message echoes similar themes found in other parables shared by Jesus, such as the Parable of the Mustard Seed and the Parable of the Yeast. These parables collectively convey the message of the gradual but expansive growth of the kingdom of God in the hearts of believers and in the world around them.