"He was wounded for our transgressions and bruised for our iniquities, and the chastisemenet that brought us peace was upon Him, and with His stripes we are healed"( Isaiah 53:4)
This is what Jesus paid for the entire human race. Yet some people say, "May be it's not God's will for me to be healed.", and they use Paul's thorn as the paramount.
Is it God's will for their sins to be forgiven? Why take only the first half as God's will and ignore the second half?

What was Paul's mysterious thorn?