Does God ordain the sin that He hates, and brings about the ultimate good?
Did God plan for sin to take place while not being the author of sin?
I have heard it often said that when sin or the fall happened, it was as if God had to go with "Plan B" since His initial plan didn't work out like He had hoped it would.
Here are some more things to think about.
What do you think about this quote:
"You can't define God's Sovereignty, if you could then it wouldn't be sovereignty"
I'm personally not sure I can agree with that statement. I think we can try to describe God's Sovereignty even though we might not do it justice in our description. And I think the Bible as a whole describes God's Sovereignty throughout. I also look to Christ for a real life picture of God's Sovereignty and how it is all about the person and works of Christ.
Grace and Peace,
Lord’s Day 4
9. Does not God, then, do injustice to man by requiring of him in His Law that which he cannot perform?
No, for God so made man that he could perform it; but man, through the instigation of the devil, by willful disobedience deprived himself and all his descendants of this power.
 Gen 1:31; Eph 4:24;  Gen 3:13; Jn 8:44; 1 Tim 2:13-14;  Gen 3:6;  Rom 5:12, 18-19
10. Will God allow such disobedience and apostasy to go unpunished?
Certainly not, but He is terribly displeased with our inborn as well as our actual sins, and will punish them in just judgment in time and eternity, as He has declared: “Cursed is everyone that continues not in all things which are written in the book of the law to do them.”
 Heb 9:27;  Ex 34:7; Ps 5:4-6, 7:10; Nah 1:2; Mt 25:41; Rom 1:18, 5:12; Eph 5:6;  Deut 27:26; Gal 3:10
11. But is not God also merciful?
God is indeed merciful, but He is likewise just; His justice therefore requires that sin which is committed against the most high majesty of God, be punished with extreme, that is, with everlasting punishment both of body and soul.
 Ex 20:6, 34:6-7; Ps 103:8-9;  Ex 20:5, 34:7; Deut 7:9-11; Ps 5:4-6; 2 Cor 6:14-16; Heb 10:30-31; Rev 14:11;  Mt 25:45-46