through the will of God—not because of my own merit. Thus Paul’s call as “an apostle by the will of God,” while constituting the ground of the authority he claims in the Corinthian Church (compare ), is a reason for humility on his own part (, ) [BENGEL]. In assuming the ministerial office a man should see he does so not of his own impulse, but by the will of God (Je 23:21); Paul if left to his own will would never have been an apostle ().
Jamieson, R., Fausset, A. R., & Brown, D. (1997). Commentary Critical and Explanatory on the Whole Bible (Vol. 2, p. 262). Oak Harbor, WA: Logos Research Systems, Inc.