Mark 8:13-16
Mark 8:13-16 ESV
And he left them, got into the boat again, and went to the other side. Now they had forgotten to bring bread, and they had only one loaf with them in the boat. And he cautioned them, saying, “Watch out; beware of the leaven of the Pharisees and the leaven of Herod.” And they began discussing with one another the fact that they had no bread.