11 The Pharisees came out and started an argument with Jesus. They wanted to test him by asking for a sign from heaven.
12 Jesus groaned and said, “Why are you always looking for a sign? I can promise you that you will not be given one!”
13 Then he left them. He again got into a boat and crossed over to the other side of the lake.
14 The disciples had forgotten to bring any bread, and they had only one loaf with them in the boat.
15 Jesus warned them, “Watch out! Guard against the yeast of the Pharisees and of Herod.”
16 The disciples talked this over and said to each other, “He must be saying this because we don't have any bread.”
17 Jesus knew what they were thinking and asked, “Why are you talking about not having any bread? Don't you understand? Are your minds still closed?