Saturday, August 22, 2026
Matthew 16:5-12
The Yeast of the Pharisees and Sadducees
5 When they went across the lake, the disciples forgot to take bread. 6 “Be careful,” Jesus said to them. “Be on your guard against the yeast of the Pharisees and Sadducees.”
7 They discussed this among themselves and said, “It is because we didn’t bring any bread.”
8 Aware of their discussion, Jesus asked, “You of little faith, why are you talking among yourselves about having no bread? 9 Do you still not understand? Don’t you remember the five loaves for the five thousand, and how many basketfuls you gathered? 10 Or the seven loaves for the four thousand, and how many basketfuls you gathered? 11 How is it you don’t understand that I was not talking to you about bread? But be on your guard against the yeast of the Pharisees and Sadducees.” 12 Then they understood that he was not telling them to guard against the yeast used in bread, but against the teaching of the Pharisees and Sadducees.
In Matthew 13:33, Jesus compares the kingdom of heaven to yeast that a woman works into dough. In that image, yeast is a hidden but active ingredient. It transforms what is flat into something that rises, expands, and can be broken and shared.
In today’s passage, Jesus uses the image of yeast again, but this time as a warning. Not every influence that works quietly beneath the surface is life-giving. Some teachings and assumptions can spread through a community in ways that distort faith, shrink imagination, and pull people away from trust in God.
Matthew’s Gospel was written for a community of Jewish believers in Jesus, many of whom were wrestling with what it meant to follow him while still living within the religious and political pressures of their day. Again and again, Matthew shows Jesus challenging teachers and leaders whose vision of God’s kingdom had become too small.
The yeast Jesus warns against includes the religious legalism of the Pharisees and the political maneuvering of the Sadducees. Both groups had real concerns, but neither could imagine the kingdom the way Jesus revealed it. They could not see a God who feeds thousands with a few loaves and fish, welcomes outsiders, forgives sinners, and brings life out of death.
We face similar temptations in the church today. Religious legalism can convince us that faithfulness is mostly about drawing tighter boundaries and enforcing the rules. Political anxiety can convince us that the kingdom depends on winning power, controlling outcomes, or legislating our way to righteousness. Each impulse may begin with real concerns, but both can become yeast that narrows our vision of what God can do.
When that kind of yeast gets loose in a church, we can become fearful, closed, and more confident in our own systems than in the abundance of God. But Jesus is always inviting us into a wider imagination. The kingdom of heaven is bigger than our scarcity, stronger than our politics, and more generous than our rules. Thanks be to God.
What would it look like for our church to trust the God who fed the five thousand, the God who raises the dead, the God of abundance and new life? How might that change the way we approach ministry, welcome our neighbors, and face the future?
– Pr. Jason
Jesus, remind me again that you overcame the grave. Guard us from any yeast that makes your kingdom smaller than it is. Give us faith to trust your abundance, courage to welcome our neighbors, and hope to follow you into new life. Amen.
