In the beginning, in the Garden of Eden, there was no sin and no sickness. After the fall, sickness and death happened. Micah 6 affirmed this positive correlation:
On the other hand, Jesus stated a non-correlation in John 9:
S1 is false, i.e., S1 is not universally true for everyone without exceptions.
Generally speaking, there is a positive correlation between sin and sickness. In specific cases, however, the correlation could be 0.
Jesus spoke to some scribes in Mark 2:13 So also I will make you sick, striking you down, Desolating you because of your sins.
Jesus healed the paralytic by forgiving his sins.8b “Why do you question these things in your hearts? 9 Which is easier, to say to the paralytic, ‘Your sins are forgiven,’ or to say, ‘Rise, take up your bed and walk’?
On the other hand, Jesus stated a non-correlation in John 9:
Let proposition S1 = if a person sins, he will get sick.1 As he passed by, he saw a man blind from birth. 2 And his disciples asked him, “Rabbi, who sinned, this man or his parents, that he was born blind?” 3 Jesus answered, “It was not that this man sinned, or his parents, but that the works of God might be displayed in him.
S1 is false, i.e., S1 is not universally true for everyone without exceptions.
Generally speaking, there is a positive correlation between sin and sickness. In specific cases, however, the correlation could be 0.