given' diseases by God. Its just a part of having a mortal body that is susceptible to genetics and biology.  I don't believe that healing people of their infirmities is going against God's plan. Its absolutely ridiculous to think so. If that's the case, Mormons would be counseled to not go to doctors, take medicine, or have medical procedures of any kind done. Which obviously, we aren't. Next time you get a broken leg we'll just let you deal with it instead of setting it. Obviously God meant for you to experience life lame. If we fixed your leg, you'd be missing out on all sorts of wonderful lessons!  This is all spurned by the rumor that used to be passed around in the 00s that people born with Downs Syndrome were "God's most valiant" so they didn't need to be tested, and were just here to test us. (which is a whole other conversation, but doesn't make one bit of sense with our theology.)