The third volume of this three-volume work exegetes and comments on every occurrence of the Greek terms for righteousness, righteous, righteously, and righteous judgment in the New Testament. It begins with a general discussion of the righteous word group in the New Testament and concludes with a discussion of the righteousness of God and the righteousness of faith. The same proposal that was explored in Volumes 1 and 2, that righteousness means conformity to God's Being and doing, is now explored in the NT. Whatever flavor or nuance righteousness terminology may have in different NT contexts, study shows that the underlying sense of righteousness as conformity to God's Being and doing, both for God and for people, has the explanatory power required to commend the definition. Such a result has further implications for justification studies.