1 Corinthians 9:25-27

Murdock(i) 25 For every one who engageth in the contest, restraineth his desires in every thing. And they run, to obtain a crown that perisheth; but we, one that perisheth not. 26 I therefore so run, not as for something unknown; and I so struggle, not as struggling against air; 27 but I subdue my body, and reduce it to servitude; lest, when I have preached to others, I myself should be a reprobate.