1 Corinthians 9:25-27

Bishops(i) 25 Euery man that proueth maisteries, abstayneth from all thynges, and they [do it] to obtayne a crowne that shall perishe: but we to obtayne an euerlasting crowne 26 I therfore so run, not as at an vncertayne thing: So fight I, not as one that beateth the ayre 27 But I tame my body, and bryng it into subiection, lest by any meanes, that when I haue preached to other, I my selfe shoulde be a castaway