[11] And the Pharisees came forth, and began to question with him, seeking of him a sign from heaven, tempting him. [12] And he sighed deeply in his spirit, and saith, Why this generation a sign? verily I say There shall no sign be given generation. [13] And he left them, and entering into again departed to the other side. [14] Now the disciples had forgotten to take bread, neither had they in the ship with them one loaf. [15] And he charged them, saying, Take heed, beware of the leaven of the Pharisees, and of the leaven of Herod. [16] And they reasoned among themselves, It is because we have no bread. [17] And knew it, he saith unto them, Why reason ye, because ye have no bread? perceive ye not yet, neither understand? have ye heart hardened? [18] Having eyes, see ye not? and having ears, hear ye not? and not remember? [19] When I brake the five loaves among five thousand, how many baskets full of fragments took ye up? They say unto him, Twelve. [20] when the seven among four thousand, how many baskets full of fragments took ye up? Seven. [21] And unto them, understand?