Mark 8:14-21 - Beware The Leaven Of The Pharisees And Herod
14 Now they had forgotten to take bread, and had not in the boat with them more than one loaf. 15 So he gave them this warning. "Look out! Be on the watch against the leaven of the Pharisees, and the leaven of Herod."
16 And they began arguing with one another because they had no bread, He noted this and said to them. 17 "Why are you arguing together because you have no bread? Do you not yet perceive and understand? 18 Are your minds so slow to comprehend? You have eyes, do you not see? You have ears, do you not hear? 19 Do you not remember? When I broke the five loaves among the five thousand, how many baskets of broken pieces did you take up?" "Twelve," they said.
20 "And when the seven for the four thousand, how many hampers full of fragments did you pick up?"
21 "Do you not yet understand?" he said.