Matthew 13:33

“Another parable spake he unto them; The kingdom of heaven is like unto leaven, which a woman took, and hid in three meas...”

Matthew 16:6

“Then Jesus said unto them, Take heed and beware of the leaven of the Pharisees and of the Sadducees.”

Matthew 16:11

“How is it that ye do not understand that I spake it not to you concerning bread, that ye should beware of the leaven of ...”

Matthew 16:12

“Then understood they how that he bade them not beware of the leaven of bread, but of the doctrine of the Pharisees and o...”

Mark 8:15

“And he charged them, saying, Take heed, beware of the leaven of the Pharisees, and of the leaven of Herod.”