James 5:16
Therefore confess your sins to each other and pray for each other so that you may be healed. The prayer of a righteous person is powerful and effective — the exhortation to mutual confession (exhomologeō, openly acknowledge) and prayer establishes communal accountability and intercession as means to healing. The assertion that the prayer of a righteous one (dikaiou) has 'much power' (ischyei poly) and is 'effective' (energeō, works/is operative) establishes the spiritual efficacy of the righteous person's prayer.