It is no evidence that affections are gracious, that they are not purposely produced by those who are the subjects of them, or that they arise in their minds in a manner which they cannot account for. There are some who make this an argument in their own favour, when speaking of what they have experienced: "I am sure I did not make it myself: it was a fruit of no contrivance or endeavour of mine; it came when I thought nothing of it; if I might have the world for it, I cannot make it again when I please." And hence they determine, that what they have experienced, must be from the mighty influence of the Spirit of God,