God is, Edwards says, "the permitter . . . of sin;...
That's what I said! The idea being that if the "permitter" is also the "creator", permission and creation of sin are synonomous,
as the end of your Edwards quote goes on to state:
that sin, if it be permitted . . . will most certainly and infallibly follow.
If something is
certain within a permission, than the permission is also the creation.
He uses the analogy of the way the sun brings about light and warmth by its essential nature, but brings about dark and cold by dropping below the horizon.
And that is a very, very poor analogy - Because the sun is not the creator of the rules governing the light/warmth/dark/cold. If the sun had created those rules, it would have known that its absence would bring dark and cold, and so would have also been the creator of the dark and cold:
"sin is not the fruit of any positive agency or influence of the most High, but on the contrary, arises from the withholding of his action and energy, and under certain circumstances, necessarily follows on the want of his influence."
So God created evil passively, rather than actively - not much of distinction; like claiming that I did not create a car accident, because I only took my hands off the wheel, and thus had no "positive" hand in the situation, even though I knew what would "necessarily follow".
It would be nice to hear your arguments in your own words - the Edwards quotes are contradictory and at times argue
against the point you are trying to make.