How is it that you do not understand that I spoke it not to you concerning bread, that you should beware of the leaven of the Pharisees and of the Sadducees?
Mark 4:40 And he said to them, Why are you so fearful? how is it that you have no faith?
Mark 8:21 And he said to them, How is it that you do not understand?
Luke 12:56 You hypocrites, you can discern the face of the sky and of the earth; but how is it that you do not discern this time?
John 8:43 Why do you not understand my speech? even because you cannot hear my word.