For such are false apostles, deceitful workers, transforming themselves into the apostles of Christ. For such are false apostles - Persons who pretend to be apostles, but have no mission from Christ.
Deceitful workers - They do preach and labor, but they have nothing but their own emolument in view.
Transforming themselves - Assuming as far as they possibly can, consistently with their sinister views, the habit, manner, and doctrine of the apostles of Christ.