Thou shalt not tempt the Lord thy God

Is it wrong to ask God for a miracle and then sit waiting for it to happen? Is that faith or presumption? There is this boy: his parents are friends of a friend of mine. The boy has just turned ten but is diagnosed with leukemia and there is talk of bone marrow transplants and intensive chemo and wot not. His parents and siblings would do just about anything to see him better and, indeed, they might well have to do just about anything. It cannot be that I've fallen in love with the boy for I know nothing more about him apart from his name - but maybe I've fallen in love with the case because it breaks my heart. Why should he have to suffer like this? Why shouldn't God stretch his might hand and heal him? Would it spoil some vast eternal plan if he were healed? The parents have asked for prayer with this at the top of their wish list: "immediate healing; that when he has his bone marrow tested this week, it'll be all clear". I go along with this sentiment and so that's just what I have been asking God to do. And I am not ashamed to go on repeating this request: what more can I do? Maybe when I hear more news I'll post again.

See here and here.