Effectual Fervent Prayer of the Righteous Man
The concept of effectual fervent prayer, as mentioned by Paul in James 5:16, is not a special gift that elevates the prayers of some Christians above others, but rather a description of the kind of prayer that arises from a righteous life. Paul writes in Romans 8:28 that God works all things together for good to those who love Him, and this includes the prayers of His people. The effectiveness of prayer is not dependent on the individual's ability or gift, but on the righteousness of Christ, which is imputed to believers. This truth addresses the heart behind the question, which may be concerned about the perceived ineffectiveness of one's own prayers.
The Reformed tradition emphasizes the importance of prayer as a means of communion with God, and the Westminster Larger Catechism teaches that prayer is an offering up of our desires unto God, in the name of Christ, by the help of the Holy Spirit. The fervency and effectiveness of prayer are not limited to a select few, but are available to all believers who approach God in humility and faith.
The gospel connection to this truth is that Christ's righteousness is the foundation of our prayers, and it is through His intercession that our prayers are heard and answered. This truth brings comfort to believers, reminding them that their prayers are not dependent on their own merits or abilities, but on the merits and intercession of Christ. As a result, believers can approach God with confidence, knowing that their prayers are heard and valued by a loving Father.