1 Corinthians 9:24

to those who are without law, as without law (not being without law toward God, but under law toward Christ), that I might win those who are without law.

To the weak I became as weak, that I might gain the weak. I have become all things to all men, that I may by all means save some.

Now I do this for the sake of the Good News, that I may be a joint partaker of it.

Every man who strives in the games exercises self-control in all things. Now they do it to receive a corruptible crown, but we an incorruptible.

I therefore run like that, not aimlessly. I fight like that, not beating the air,

but I beat my body and bring it into submission, lest by any means, after I have preached to others, I myself should be disqualified.