J&M pointing out one of the more weird and nonsensical parts of Christianity, or indeed any of the Abrahamic traditions. Why would a God create humans "sick" only to command them to be well?
Luckily there is no evidence that any of it is true, never has been, and the influence of religion in most developed countries is diminishing over time. This relaxing of a (fixed) Theological and objective-morality stranglehold enables societies to develop a more humane system based on values like reason, fairness, reciprocity, equality and empathy. More importantly it enables us to change our morality over time to better suit the conditions and situations we find ourselves in as a result of progress, all in all a much better and more satisfactory state of affairs for everyone.