1 Corinthians 9:26-27

Wycliffe Bible

²⁶ Therefore I run so, not as to an uncertain thing; thus I fight, not as beating the air;

²⁷ but I chastise my body, and bring it into servage; lest peradventure when I preach to others [lest peradventure when I have preached to others], I myself be made reprovable.