Prayer does not change the purpose of God. But prayer does change the action of God.

Prayer is not an agency by which my will is to be accomplished upon the earth. The purpose of prayer is to get God's will to be accomplished upon the earth, and so many times we ask and receive not because the motive behind our asking is really that of accomplishing my will rather than God's will.

Though prayer doesn't change God's mind or God's purposes, prayer does change something- It changes us.

There are more battles won through prayer than by any other means.

The most important thing a born again Christian can do is to pray.