Mark 8:10-21 (New International Version)

¹⁰he got into the boat with his disciples and went to the region of Dalmanutha.

 ¹¹The Pharisees came and began to question Jesus. To test him, they asked him for a sign from heaven. ¹²He sighed deeply and said, "Why does this generation ask for a miraculous sign? I tell you the truth, no sign will be given to it." ¹³Then he left them, got back into the boat and crossed to the other side.

The Yeast of the Pharisees and Herod

 ¹⁴The disciples had forgotten to bring bread, except for one loaf they had with them in the boat. ¹⁵"Be careful," Jesus warned them. "Watch out for the yeast of the Pharisees and that of Herod."

 ¹⁶They discussed this with one another and said, "It is because we have no bread."

 ¹⁷Aware of their discussion, Jesus asked them: "Why are you talking about having no bread? Do you still not see or understand? Are your hearts hardened? ¹⁸Do you have eyes but fail to see, and ears but fail to hear? And don't you remember? ¹⁹When I broke the five loaves for the five thousand, how many basketfuls of pieces did you pick up?"
      "Twelve," they replied.

 ²⁰"And when I broke the seven loaves for the four thousand, how many basketfuls of pieces did you pick up?"
      They answered, "Seven."

 ²¹He said to them, "Do you still not understand?"