As Paul argues, it is the righteousness of God that is revealed in the law, and this condemns us all (Ro 1:18 - 3:20), while the gospel reveals the righteousness from God, namely, that we "are justified by his grace as a gift, through the redemption that is in Christ Jesus" (Ro 3:24).
Michael HortonIf the focus of our testimony is our changed life, we as well as our hearers are bound to be disappointed.
Michael HortonThe key to maturity is time and community. Discernment and godly wisdom develop in a community that spans generations. The church is called to be this place where the [God's] Spirit uses normal patterns and rhythms of the Christian life in a community, so that we may bear fruit like a well-watered tree. Despite common appearances, the church is the place where God's new creation is coming into existence and being sustained by the Spirit like a great vineyard.
Michael HortonIf we think the main mission of the church is to improve life in Adam and add a little moral strength to this fading evil age, we have not yet understood the radical condition for which Christ is such a radical solution.
Michael Horton