Jesus tells: And all things you ask in prayer, believing, you will receive. without terms, conditions or any limitations (Matthew 21:21-22). Since Jesus is God, we can safely assume it is the Truth.
Why would Christians need:
- cars, trains or planes? (they can ask to be teleported)
- hospital, pills, casts, doctors or health insurance? (they can ask to be healed)
- plastic surgery? (they ask ask to have any appearance they like)
- money? (can can just ask form something and it will appear)
- bridges? (they can ask to levitate)
- weapons? (they can ask for their enemies to be destroyed by their god, like in the Old testament)
- dating services, bars or other place to meet a mate? (they can ask for the perfect mate right away)
- stoves, fridges or restaurants? (they can ask for the food and it will appear in front of them)
- cooling or heating systems? (they can ask God to change the climate for them)
- any science at all? (they can ask God to tell them directly how it works)