Pharaoh called for Moses and Aaron, and he said to them: "Who will believe you when you say that you are the ambassadors of God, as you pretend to be, if you do not convince men by performing wonders?" Thereupon Aaron cast his rod to the ground, and it became a serpent. Pharaoh laughed aloud. "What," he exclaimed, "is this all your God can do?
It is the way of merchants to carry merchandise to a place if there is none of it there, but would anyone take brine to Spain or fish to Accho? It seems you do not know that I am an adept in all sorts of magic!" He ordered little school children to be brought, and they repeated the wonder done by Moses and Aaron; indeed, Pharaoh's own wife performed it. Jannes and Jambres, the sons of Balaam, derided Moses, saying, "Ye carry straw to Ephrain!" whereto Moses answered, "To the place of many vegetables, thither carry vegetables."