And when her masters saw that the hope of their gains was gone, they caught Paul and Silas, and drew them into the marketplace unto the rulers, When her masters saw - It appears she was maintained by some men, who received a certain pay from every person whose fortune she told, or to whom she made any discovery of stolen goods, etc., etc.
The hope of their gains was gone - Ἡ ελπις, This hope; viz. the spirit. So completely was this spirit cast out that the girl could divine no more; and yet she continued a heathen still, for we do not hear a word of her conversion. Had she been converted, got baptized, and been associated with the apostles, the family of Lydia, etc., there would have been some show of reason to believe that there had been no possession in the case, and that the spirit of divination coming out of her meant no more than that, through scruple of conscience, she had left off her imposing arts, and would no longer continue to pretend to do what she knew she could not perform. But she still continued with her masters, though now utterly unable to disclose any thing relative to futurity!
Drew them into the market-place - This was the place of public resort, and, by bringing them here, they might hope to excite a general clamor against them; and probably those who are here called τους αρχοντας, the rulers, were civil magistrates, who kept offices in such public places, for the preservation of the peace of the city. But these words, the rulers, are suspected to be an interpolation by some critics: I think on no good ground.