Jonathan Edwards:
One erroneous principle, than which scarce any has proved more mischievous to the present glorious work of God, is a notion that it is God’s manner in these days, to guide his saints, at least some that are more eminent, by inspiration, or immediate revelation.
They suppose he makes known to them what shall come to pass hereafter, or what it is his will that they should do, by impressions made upon their minds, either with or without texts of Scripture; whereby something is made known to them, that is not taught in Scripture.
By such a notion the devil has a great door opened for him; and if once this opinion should come to be fully yielded to, and established in the church of God, Satan would have opportunity to set up himself as the guide and oracle of God’s people, and to have his word regarded as their infallible rule, and so to lead them where he would, and to introduce what he pleased, and soon to bring the Bible into neglect and contempt.
(From Thoughts on the Revival of Religion in New England, part 4, section 2, page 404 in volume 2 of the Banner edition of Edwards’ works.)