7:8-13 What men dislike, because it opposes their pride and lusts, they will not be convinced of; but it is easy to cause them to believe things they wish to be true. God always sends with his word full proofs of its Divine authority; but when men are bent to disobey, and willing to object, he often permits a snare to be laid wherein they are entangled. The magicians were cheats, trying to copy the real miracles of Moses by secret sleights or jugglings, which to a small extent they succeeded in doing, so as to deceive the bystanders, but they were at length obliged to confess they could not any longer imitate the effects of Divine power. None assist more in the destruction of sinners, than such as resist the truth by amusing men with a counterfeit resemblance of it. Satan is most to be dreaded when transformed into an angel of light.

11. Then Pharaoh also called the wise men and the sorcerers, &c.—His object in calling them was to ascertain whether this doing of Aaron's was really a work of divine power or merely a feat of magical art. The magicians of Egypt in modern times have been long celebrated adepts in charming serpents, and particularly by pressing the nape of the neck, they throw them into a kind of catalepsy, which renders them stiff and immovable—thus seeming to change them into a rod. They conceal the serpent about their persons, and by acts of legerdemain produce it from their dress, stiff and straight as a rod. Just the same trick was played off by their ancient predecessors, the most renowned of whom, Jannes and Jambres (2Ti 3:8), were called in on this occasion. They had time after the summons to make suitable preparations—and so it appears they succeeded by their "enchantments" in practising an illusion on the senses.