Petitionary prayer is incompatible with the fact that you cannot change the will of God. In another thread I asked christians if it was possible to change the will of God and the answer came back almost 100% "no".
http://www.christianforumsite.com/threads/can-you-change-the-will-of-god.35715/#post-291757
If this is true then why do Christians ask God for things? God's already decided what is He going to allow and not allow. I have nothing against worshipping God but this practice of asking God for things has got to stop. Not only should it stop it makes you upset. When you're prayers aren't answered you just get upset and lose faith in God. For example in another post a Christian wrote: "I feel hopeless. I pray seek GOD. But I get nothing. He seems to be ignoring me or just doesn't care about me or he doesn't exist."
http://www.christianforumsite.com/threads/im-losing-my-faith-in-god-and-im-really-scared.35581/
http://www.christianforumsite.com/threads/can-you-change-the-will-of-god.35715/#post-291757
If this is true then why do Christians ask God for things? God's already decided what is He going to allow and not allow. I have nothing against worshipping God but this practice of asking God for things has got to stop. Not only should it stop it makes you upset. When you're prayers aren't answered you just get upset and lose faith in God. For example in another post a Christian wrote: "I feel hopeless. I pray seek GOD. But I get nothing. He seems to be ignoring me or just doesn't care about me or he doesn't exist."
http://www.christianforumsite.com/threads/im-losing-my-faith-in-god-and-im-really-scared.35581/