Yeast; a micro-organism consisting of single oval cells that reproduce by budding. As fungi go, through the process of fermentation, it’s quite useful as the active ingredient in making various other products such as wine, beer, yogurt and bread to name a few. Fermentation is a natural process that has been used long before any one understood how it worked. We are far from knowing every scientific action and reaction that occurs in life. Of the things we do know, I believe God intends us to use that knowledge for the benefit of God’s creation. Otherwise we risk our love for God becoming like yeast that takes what is sweet and pleasurable and turns it into something addicting and toxic. Beware of the yeast of the Pharisees. Nothing is covered up that will not be uncovered, and nothing secret that will not become known (Luke 11:53-12:12).
…and beware of the yeast… Matthew 16:1-12 Some believe that the earliest winemaking was probably by accident. Not until the 1800’s do we understand that enzymes secreted by yeast cells in the fermentation process of breaking down sugar, plays a significant part in contributing to its flavor. Likewise evidence of baking bread goes as far back as 4000+years, but not until the 19th century did we understand the process of yeast in causing dough to rise. Either way research has shown us that yeast is this microscopic organism, a fungus that reproduces by budding, grows very quickly and whose DNA can be easily manipulated. However, over time, the yeast loses its activity. We know from the passage that Jesus is comparing the yeast to the Pharisees’ teaching of doctrine. Isn’t it interesting that Jesus’ use of the word yeast is still appropriate for us today in light of its characteristics of which we’ve only fully known and understood since the 19th century? Let us not be easily manipulated. God’s truth is eternal; always active in all places and at all times.