TSK · Galatians 5:9

Jesus said to them, "Take heed and beware of the yeast of the Pharisees and Sadducees."

He warned them, saying, "Take heed: beware of the yeast of the Pharisees and the yeast of Herod."

It is like yeast, which a woman took and hid in three measures of flour, until it was all leavened."

Don't be deceived! "Evil companionships corrupt good morals."