The law commands and threatens, but it cannot empower us to fulfill its demands or deliver anyone from its sentence (v. 20). By contrast, the gospel is a strange — utterly foreign — announcement of God’s saving grace in Jesus Christ. By nature, we understand “law-talk,” but “gospel-talk” is a foreign tongue whose basics we must learn and relearn throughout our life.
Horton, Michael S. (2010-12-21). The Christian Faith: A Systematic Theology for Pilgrims on the Way (Kindle Locations 10181-10184). Zondervan. Kindle Edition.