An evil and adulterous generation seeks after a sign, and no sign will be given to it, except the sign of Jonah the prophet. And having left them behind, he departed. And his disciples having come to the other side, they forgot to take loaves. And Jesus said to them, Watch and beware of the leaven of the Pharisees and Sadducees. read more.
And they deliberated among themselves, saying, We took no loaves. And having known it, Jesus said to them, O ye of little faith, why do ye deliberate among yourselves because ye brought no loaves? Do ye not yet understand, nor remember the five loaves of the five thousand, and how many baskets ye took up, nor the seven loaves of the four thousand, and how many hampers ye took up? How do ye not understand that I spoke to you not about bread, to beware of the leaven of the Pharisees and Sadducees? Then they understood that he said not to beware of the leaven of bread, but of the teaching of the Pharisees and Sadducees.

And having left them, having entered again into a boat, he departed to the other side. And they forgot to take loaves, and they did not have with them in the boat except one loaf. And he commanded them, saying, Take heed, watch for the leaven of the Pharisees and the leaven of Herod. read more.
And they deliberated among each other, saying, We have no loaves. And knowing it Jesus says to them, Why do ye deliberate because ye have no loaves? Do ye not yet perceive nor understand? Have ye your heart still hardened? Having eyes, ye see not, and having ears, ye hear not? And do ye not remember? When I broke the five loaves for the five thousand, how many baskets full of fragments did ye take up? They say to him, Twelve. And when the seven for the four thousand, how many hampers full of fragments did ye take up? And they said, Seven. And he said to them, How do ye not understand?