Johanan bar Nappaha taught that sorcerers are called , "kashefim", because they seek to contradict the power of Heaven. (Some read , "kashefim", as an acronym for , "kachash pamalia", "contradicting the legion Heaven.") But the "Gemara" noted that says, "There is none else besides Him (God)." Rabbi Hanina interpreted to teach that even sorcerers have no power to oppose God's will. A woman once tried to take earth from under Rabbi Hanina's feet (so as to perform sorcery against him). Rabbi Hanina told her that if she could succeed in her attempts, she should go ahead, but (he was not concerned, for) says, "There is none else beside Him." But the "Gemara" asked whether Johanan bar Nappaha had not taught that sorcerers are called , "kashfim", because they (actually) contradict the power of Heaven. The "Gemara" answered that Rabbi Hanina was in a different category, owing to his abundant merit (and therefore Heaven protected him).