I agree. God is the Soveriegn Lord who does whatever He intends to do.
Then He did create evil for a specific purpose. As Romans 9 14-24 says:
( wonder if anyone that is responding in this thread has read Romans 9:14-24 or anyone will attempt to go by line-by-line to understand...hope so!)
You seem bent on attributing sin to God. 1st John 1.5 tells us that, "God is light and there is no darkness in Him at all." [NLT] Then 3.5 says, "And you know that Jesus came to take away our sins, for there is no sin in Him." [NLT] Jesus told us in Matthew 5.48 that our Father in Heaven is PERFECT. This being true, how can the creation of sin and evil, which you seem to be proclaiming, be attributed to God?
Romans 9, line by line might confuse the issue. I'd rather take the whole in context.
Whitney Houston just died, and by all accounts, her life, at least her outward life, was pretty messed up. But God judges the heart, which no man can do. What if God then chose to have mercy for her spirit? He has that right and power to do so. So then, God has mercy on whom he will have mercy. Also, God can use anyone for His purpose, including an evil king, or President.
All this simply says that God is sovereign and can do whatever He pleases. None of this shows that God created sin and evil. How can God create sin and evil when He is perfect. There is no imperfection in Him at all.