In this chapter, after the preface or introduction (ver. 1-5), the apostle severely reproves these churches for their defection from the faith (ver. 6-9), and then proves his own apostleship, which his enemies had brought them to question, I. From his end and design in preaching the gospel, ver. 10. II. From his having received it by immediate revelation, ver. 11, 12. For the proof of which he acquaints them, 1. What his former conversation was, ver. 13, 14. 2. How he was converted, and called to the apostleship, ver. 15, 16. 3. How he behaved himself afterwards, ver. 16, to the end.
The Introductory Address. (a. d. 56.)