Read Matthew 23:13-39
Read Matthew 16:1-12 with Jonah 4
Jesus spoke against the hypocrisy of the Pharisees and Sadducees, calling it "leaven". Hypocrisy is insidious, like cancer, infecting immature faith with either its legalistic tendencies, or liberal leanings. Its most significant impact is moving our faith from the resting place of God's mercies in jesus Christ.