Prayer is not appointed for the furnishing of God with the knowledge of what we need, but it is designed as a confession to Him of our sense of the need. In this, as in everything, God's thoughts are not as ours. God requires that His gifts should be sought for. He designs to be honoured by our asking, just as He is to be thanked by us after He has bestowed His blessing.
Prayer is not intended to change God's purpose, nor is it to move Him to form fresh purposes. God has decreed that certain events shall come to pass through the means He has appointed for their accomplishment.
Real prayer is communion with God, so that there will be common thoughts between His mind and ours. What is needed is for Him to fill our hearts with His thoughts, and then His desires will become our desires flowing back to Him.
The prevailing idea seems to be, that I come to God and ask Him for something that I want, and that I expect Him to give me that which I have asked. But this is a most dishonouring and degading conception. The popular belief reduces God to a servant, our servant: doing our bidding, performing our pleasure, granting our desires. No, prayer is a coming to God, telling Him my need, committing my way unto the Lord, and leaving Him to deal with it as seemeth Him best.
It's true that (many) are praying for a worldwide revival. But it would be more timely, and more scriptural, for prayer to be made to the Lord of the harvest, that He would raise up and thrust forth laborers who would fearlessly and faithfully preach those truths which are calculated to bring about a revival.
The nature of Christ's salvation is woefully misrepresented by the present-day evangelist. He announces a Saviour from Hell rather than a Saviour from sin. And that is why so many are fatally deceived, for there are multitudes who wish to escape the Lake of fire who have no desire to be delivered from their carnality and worldliness.
As Christ has a Gospel, Satan has a gospel too; the latter being a clever counterfeit of the former. So closely does the gospel of Satan resemble that which it parades, multitudes of the unsaved are deceived by it.