I Corinthians 9:26

I--Paul returns to his main subject, his own self-denial, and his motive in it. run, not as uncertainly--not as a runner uncertain of the goal. Ye Corinthians gain no end in your entering idol temples or eating idol meats. But I, for my part, in all my acts, whether in my becoming "all things to all men," or in receiving no sustenance from my converts, have a definite end in view, namely, to "gain the more." I know what 1 aim at, and how to aim at it. He who runs with a clear aim, looks straightforward to the goal, makes it his sole aim, casts away every encumbrance (Heb 12:1-2), is indifferent to what the by-standers say, and sometimes even a fall only serves to rouse him the more [BENGEL]. not as one that beateth the air--instead of beating the adversary. Alluding to the sciamachia or sparring in the school in sham-fight (compare Co1 14:9), wherein they struck out into the air as if at an imaginary adversary. The real adversary is Satan acting on us through the flesh.

In this chapter the apostle seems to answer some cavils against himself. I. He asserts his apostolical mission and authority, and gives in his success among them as a testimony to it (Co1 9:1, Co1 9:2). II. He claims a right to subsist by his ministry, and defends it by several arguments from natural reason and the Mosaical law, and asserts it also to be a constitution of Christ (Co1 9:3-14). III. He shows that he had willingly waived this privilege and power for their benefit (Co1 9:15-18). IV. He specifies several other things, in which he had denied himself for the sake of other men's spiritual interest and salvation (Co1 9:19-23). And, V. Concludes his argument by showing what animated him to this course, even the prospect of an incorruptible crown (Co1 9:24 to the end.)

9:26 I am not just shadowboxing: Christians must engage in the real contest of obedience to Christ rather than merely going through the motions.