I found an article on prayer – it’s good, an Excerpt from Watchman Née.
You never wrestle against man, but against powers, principalities, etc. Paul tells us how to overcome, “Pray about everything. Tell God what you need, and thank him for all he has done.”
Luke 18 – There are three in this parable
A picture of prayer. The whole purpose of the story – get the judge to join with the widow, to foist the attacks of the enemy against her!
You and I will never pray up to the full limit of our power, and to the possibility of prayer, until we realize this one aspect of prayer – the whole purpose surrounding prayer is to oust the power of the Evil One – in other words, “God, Your will be done and the enemy’s will be undone.”