1 Corinthians 9:25–27

25 Every uathlete exercises self-control in all things. They do it to receive a perishable wreath, but we van imperishable. 26 So I do not run aimlessly; I wdo not box as one xbeating the air. 27 But I discipline my body and ykeep it under control,2 lest after preaching to others zI myself should be adisqualified.