Job 2:5-7 KJV
But put forth thine hand now, and touch his bone and his flesh, and he will curse thee to thy face. [6] And the Lord said unto Satan, Behold, he is in thine hand; but save his life. [7] So went Satan forth from the presence of the Lord, and smote Job with sore boils from the sole of his foot unto his crown.
We often mistake Gods permission as God's will. There are certain times He would allow/permit certain things to happen but that does not mean it is His will concerning us.
Jeremiah 29:11-12 KJV
For I know the thoughts that I think toward you, saith the Lord, thoughts of peace, and not of evil, to give you an expected end. [12] Then shall ye call upon me, and ye shall go and pray unto me, and I will hearken unto you.
Man can never understand the ways of God, for His ways are beyond human comprehension. He permits certain things to happen in lives for reasons best known to Him. It may be to test our faith, to learn a particular lesson, to rise to a higher level different from were we have been or to grow.
From the story of Job, it was not God's but He allowed it because God Himself had faith in Job, He wanted to prove the devil wrong, He was proud of Job.
Many today might say it is only the bad things He allows that are not His will but permits it. all the blessings are His will. There are also certain blessings He permits but are not His will in our lives
Just like in the case of Abraham, who waited on God for a son but during the process of waiting, listerned to his wife and got a son from Hagar. Ishmael was actually a blessing to Abraham because that was what He needed at the tme. But God would have easily locked the womb of Hagar, but he allowed it. So certain times He might also allow certain things we see and feel as blessings along our way, to either teach us a lesson, or to prepare us for what He has in store for us.
Thank you