Thanking God after a good result is ordinary politeness. Doing it before you know is a statement about who you think is handling it, which is a different thing. Nothing about that guarantees the answer you want, and pretending otherwise would be dishonest.

Before your next result lands, say thank you for something true regardless of how it goes. The work you put in, the people waiting with you, the fact that this is not the whole story. Then let the envelope be an envelope.