5:17. If then any be in Christ a new creature, the old things are passed away. Behold all things are made new.
5:18. But all things are of God, who hath reconciled us to himself by Christ and hath given to us the ministry of reconciliation.
5:19. For God indeed was in Christ, reconciling the world to himself, not imputing to them their sins. And he hath placed in us the word of reconciliation.
5:20. For Christ therefore we are ambassadors, God as it were exhorting by us, for Christ, we beseech you, be reconciled to God.
5:21. Him, who knew no sin, he hath made sin for us: that we might be made the justice of God in him.
Sin for us… That is, to be a sin offering, a victim for sin.
2 Corinthians Chapter 6
He exhorts them to a correspondence with God's grace and not to associate with unbelievers.
6:1. And we helping do exhort you that you receive not the grace of God in vain.
6:2. For he saith: In an accepted time have I heard thee and in the day of salvation have I helped thee. Behold, now is the acceptable time: behold, now is the day of salvation.