The passionate, wholehearted, persistent prayer of a righteous man has tremendous miracle working power. Meditating the Word of God

The verse we look at is from the Gospel of James 5:16b. We have it in 3 versions.

The earnest prayer of a righteous person has great power and produces wonderful results. (version NLT)

For tremendous power is released through the passionate, heartfelt prayer of a godly believer! (version TPT)