:::Protestants recognize full well that Lucifer is rebellious, but that Lucifer, being subject to the Sovereignty of God cannot do anything which God does not allow. :::
This fits in very well with the Reformed doctrine, doesn’t it? Satan is an agent of the Reformed God. This must mean that the Reformed God is the origin of evil, since nothing that anyone does in a Calvinistic universe is not preordained by God.
This supports Kosta’s point.
One could just as well just cut through the chase and say that Satan, in the Calvinistic universe, is evil because God made him evil. It is God who somehoe cause the rapist to rape. And if a child is born of that rape God "made" him too—because He wanted to...