An important verse to note is 2 Cor 5:21, "For our sake he made him to be sin who knew no sin, so that in him we might become the righteousness of God" (ESV), which has traditionally been interpreted to mean that the Christian has, in some way, become righteous (by impartation or imputation), in exchange for Jesus' sinlessness. Moreover, Wright says, Paul is speaking here "of the apostles," and pointing out that "in their role as apostles," their activity is effectively God's righteousness (covenant faithfulness) in action ("we are ambassadors for Christ, God making his appeal through us. We implore you on behalf of Christ, be reconciled to God" - v 20). This meaning is natural when taken in context from verse 11 through 21.