Ouroboros:
The Hebrew word רַע translated evil in Isaiah 45:7 can also be translated (and is in many other passages) distress, misery, injury, calamity, e.g. Jeremiah 42:6, Whether it is pleasant [prosperity] or unpleasant [adversity] we will listen to the voice of the Lord our God
[Brown, Francis, Samuel Rolles Driver and Charles Augustus Briggs. Enhanced Brown-Driver-Briggs Hebrew and English Lexicon. electronic ed. Oak Harbor, WA: Logos Research Systems, 2000.] The verse is bearing witness to Gods sovereignty over what occurs on earth, even bad events, such that He is not helpless against human history even if He is not the DIRECT cause.
Tranquil Servant, your husbands understanding of God creating evil comes from the Muslim belief that Gods law good and evil - is completely arbitrary: they are not based in any moral character of God, they are simply a test of obedience. He can make right wrong and wrong right. This is why none of the five pillars of Islam exist once one gets to heaven; they just go through them to get there. But your view seems to affirm that morals find their origin in Gods own nature. My conclusion has been thus:
A) It is impossible to distinguish evil from good unless one has an infinite reference point that is absolutely good. Since evil can only exist as a corrupting leech onto or deprivation of something good, we must have a standard that is untainted by evil in order to compare whether something or someone that exists has been tainted with evil or not.
B) This standard can only be found in the person of God, because since good finds its source in God, He alone can exhaust the definition of what is good.
C) So if you know God in all of His fullness, you will know good. Good and evil is all based on knowing God, since He is the reference point.
Genesis 2:16-17
A) One cannot know evil unless they know good, because evil cant exist or make any rational sense unless good exists and you know what characterizes it in order to judge whether something evil lines up with it or not.
B) One also cannot know good unless they know evil. Without the contrast Adam and Eve, although surrounded by good, could not really know the concept of one without the other (e.g. West when there is no East, light when there is no dark). Thus eating of the tree gave the knowledge of both good and evil.
C) God created the world for His glory through a process of His expression and our reception of and response to it. Thats how He is glorified by His Creation.
D) Evil must exist for humanity to grasp the concept of Gods goodness. If we have no way of knowing goodness He cannot express Himself to us, and this structure will not function. If there is no sin in the world, how can we know Gods grace, mercy, justice, wrath? These attributes only make since in light of evils existence.
E) 1 John 4:9 The cross had everything to do with evil, but it also had everything to do with how God determined to express His love by allowing a fall in the world and then redeeming it.
Why did God put it in the garden to begin with? Was it a trap? Was God inviting a fall?
A) If He had set it up such that Adam would never fall, Adam could never decide whether he wanted to appeal to Gods goodness or not. If the response is only capable of affirming God automatically with no alternative, is that a relationship? This is not interactive in a truly genuine way (but like a doll with a string that you pull and it says I love you.). Thus it is necessary to produce vulnerability for the person to do otherwise.
B) The tree, not sin, is sovereignly designed by God to produce a choice. God makes sin possible, creatures make it actual
God did not simply know ahead of time that there would be a fall, for if this is so why didnt He just not put a tree in the garden? He was the enabler by which the whole process could take place.
* C.S. Lewis: God in His omniscience saw that from a world of free creatures, even though they fell, He could work out a deeper happiness and greater splendor than any world of automata would admit.
C) Its not a trap when God specifically points to it and says, Stay away from it or youre going to have a bad consequence. But at the same time, God knows that a choice against Him for disobedience is not only a possibility but an inevitability. So the death of Christ was not some unfortunate detour on Gods plan.
D) We arrive at a tension between
a. The necessity of evil to exist for God to express Himself to humanity
b. Gods holy character that cannot tolerate or tempt with evil (Habakkuk 1:13; James 1:13)
c. The necessity for humanity to have a genuine choice since thats part of the requirements for the purpose structure of Creation to work
d. And Gods foreordination, where He determined to set up a world such that there would inevitably be a fall so that He might express His love to it, in my view, through the redemptive death of His Son.
Its important here to understand the concept of Gods Will(s):
A) Decretive/Preceptive Will: What He determines by decree. He gives us precepts and commands to obey, but a permissive dimension exists. Includes both what He commands and what He allows or permits (even events that are contrary to His good character).
B) Gods Desiderative Will: That which He desires. Everything God desires will not necessarily take place but what He decrees will take place. We ourselves can desire more than one thing at once and we are only finite.