Is prayer really important for every Christian? Dr. Martyn Lloyd-Jones explains that there are Christians who think there is no need to pray. “Trust God since He already knows everything,” they say. When they read Romans 8:26–27, they object: “This makes little sense. God knows all things already. We don’t know what to pray for. The Spirit prays for us. What point and purpose is there in praying?” In this sermon on Romans 8:26–27 titled “The Mystery of Prayer,” Dr. Lloyd-Jones offers very practical lessons regarding the mystery of prayer by answering questions about prayer including: “Why do we pray? Who should pray and who should not pray? How do we pray? What are the different types of prayer? What rules do we follow when we pray? What prayers are always acceptable to God? What cautions regarding prayer do we find in Scripture? Can we ever be confident when we pray for certain things?” The answers to these questions on prayer will encourage the Christian’s soul as they present their requests before God.

http://www.mljtrust.org/sermons/the-mystery-of-prayer/