HIS APOSTOLIC MINISTRY IS APPROVED BY FAITHFULNESS IN EXHORTATION, IN SUFFERINGS, IN EXHIBITION OF THE FRUITS OF THE HOLY GHOST: HIS LARGENESS OF HEART TO THEM CALLS FOR ENLARGEMENT OF THEIR HEART TO HIM. EXHORTATIONS TO SEPARATION FROM POLLUTION. (2Co. 6:1-18) workers together--with God (Act 15:4; Co1 3:9). Not only as "ambassadors." beseech--entreat (Co2 5:20). He is describing his ministry, not exhorting directly. you also--rather, "WE ALSO (as well as God, Co2 5:20) beseech" or "entreat you": Co2 6:14-15, on to Co2 7:1, is part of this entreaty or exhortation. in vain--by making the grace of God a ground for continuance in sin (Co2 6:3). By a life of sin, showing that the word of reconciliation has been in vain, so far as you are concerned (Heb 12:15; Jde 1:4). "The grace of God" here, is "the reconciliation" provided by God's love (Co2 5:18-19; compare Gal 2:2).