For follow-up discussion and general commentary on the topic. Comments are sorted chronologically.
Salem Markus Purba
Yes it is, if believers disobey God's command (Deuteronomy 28 : 21-22)
Agnes Stuart
Can those who believe it is always God's will to heal, please explain why everyone dies - even those who believe as they do? Logically, if their argument is valid, those who believe that God always heals those who have faith, then such people would live for ever.