“Apart from prayers impossible to answer – those that involve a logical contradiction such as opposing sides praying for victory, or farmers and athletes praying for conflicting weather patterns – what would happen if God answered every prayer? By answering every possible prayer, God would in effect abdicate, turning the world over to us to run. History shows how we have handled the limited power granted us: we have fought wars, committed genocide, fouled the air and water, destroyed forests, established unjust political systems, concentrated pockets of superfluous wealth and grinding poverty. What if God gave us automatic access to supernatural power? What further havoc might we wreak?
Philip Yancey: Prayer: Does it Make a Difference?