Jesus taught the crowd: “Be on your guard against the yeast of the Pharisees, which is hypocrisy.” (Luke 12:1)
A little yeast, when worked through the entire dough, radically transforms the bread.
The yeast of the Pharisees was hypocrisy. Some of the things they said weren’t true, they lacked a consistency believers ought to have. Presumably they had a “Do as I say, not as I do” mentality.
In this short and simple teaching from Jesus, there are several warnings:
Hypocrisy is contagious. It is a lesson easily learned, because short cuts require less work. The hypocrite thinks, “I can just pretend to be good without actually needing to be good.” Hypocrisy is persistent because one hypocrite rarely exposes another, because they fear the same exposure. This is a network of relationships that says, “Let’s All Lie Together.” Hypocrisy is contagious and we must guard against it.
Sin is powerful (so is foolishness). Like yeast, it only takes a little to radically change the dynamic of the whole. You don’t need to lie ninety nine percent of the time for it to damage your life, 1 or 2 percent will lead to epic destruction in your relationships. For the Pharisees, their yeast was hypocrisy. However, I’m certain there are many “kinds” of yeast. What is one of your struggles, if it’s not hypocrisy? Gossip? Indulgence? Laziness? Pride?
Consider one more warning: the Pharisees were leaders in their communities. You may not be a formal leader in the church, but what are you passing on to others? Even the best parents pass along bad habits to their kids. Spiritually speaking, what is the “yeast” in your life that others need to look out for? Jesus was clearly teaching the crowd, “Don’t be hypocritical like the Pharisees.” Jesus is also calling us to keep careful watch over our influence.
Watch out for the negative influences, specifically hypocrisy.
Identify your personal “yeast,” if it’s not hypocrisy.
Be careful of what you are passing along.