did you hear yourself? .......... "God is not the author of Evil, but he is the creator of the author of Evil" did not God CREAT.... "EVIL" listen God created EVIL, he is the author of it. for EVIL has it's place in God's economy., but not "Sin", which is of US.,God is not the author of Evil, but He is the creator of the author of Evil
now, understand something, if Evil is sin as you say, why create something that he HATES? Isaiah 45:7 "I form the light, and create darkness: I make peace, and create evil: I the LORD do all these things.", so we can drop the devil is the author of EVIL. for Genesis 1 tells us everything God created was "GOOD".
also understand, God uses evil to bring about a result. as in, he sent EVIL Angels into Egypt to move the rulers in Egypy to let his people Go. yes Evil angels. as said, in his wrath, or in Judgment, God is Righteious in what he do. just as chastisement is not ... "GOOD", to the one on recieving end, but it serves a Righteious purpose in correction.
just as God sent an EVIL spirit unto king David, for correction. see evil is not Sin, but if you're without Knowledge, and the Wisdom of God it can decieved you into "SIN".
not anymore, not in Christ Jesus.Satan still has access to God in the upper Heavenly realms currently