Charles Finney emphasizes the critical role of prayer in fostering revivals of religion, drawing from the example of the early church's prayer meeting in Jerusalem before Pentecost. He argues that genuine revivals are not miraculous but are the result of earnest prayer, preaching, and the use of appropriate means. Finney warns against the misconception that revivals occur without human effort, asserting that prayer must be specific, united, and fervent to invoke God's presence and action. He encourages Christians to actively engage in prayer and evangelism, highlighting historical revivals as evidence of the power of collective prayer and action. Ultimately, Finney calls for unity among believers to promote a wave of salvation across nations.

R.A. Torrey emphasizes the critical role of prayer in evangelism, asserting that every significant revival throughout church history has been birthed through fervent prayer. He recounts examples from the early church, the Great Awakening, and various revivals, illustrating how prayer has consistently been the catalyst for spiritual awakenings and conversions. Torrey encourages believers to commit to specific prayer for individuals, churches, and the global mission field, highlighting that true revival is the result of earnest, persistent prayer rather than mere human effort. He calls for a return to reliance on prayer as the primary means of evangelism, urging the church to seek God's guidance and power through prayer. Ultimately, Torrey believes that through dedicated prayer, the church can expect to see a mighty move of God in the world.