You told Your disciples to beware of the leaven of Herod and of the Pharisees. I can’t help but think of this in political terms.
From the time I was little I never could quite understand the great interest people (particularly men) seemed to have in politics and politicians. Nothing to me seemed quite so boring and uninteresting. Six decades later I still feel the same way. I vote. I read a little about the issues and candidates – but only out of a sense of duty, not because I’m much interested.
In my own life I don’t let the leaven of the Herods or the Pharisees of our time influence me very much. I never have!I think the reason is because I see these people as too concerned with their own roles in the operation of the world and of promulgating their ideas of how it should be done. They seem to be so detached from the world of the spirit. Their leaven is capable of changing the appearance of our souls - which is scary. Like the Pharisees of old the Pharisees of our timesare people who manipulate the spiritual to suit themselves. They promulgate their manipulations as gospel and judge others by it. I often find myself in that category, but I realize its pitfalls.
What should be the leaven in our lives instead of politics and doctrinal fundamentalism is Your life, Your example, and what You taught. The importance of being able to differentiate between these two leavens in our daily lives is what You warned Your disciple about.