3 Bible Verses about Manliness

And every one who strives in the games exercises self restraint in all things; they, indeed, therefore, to receive a corruptible crown, but we an incorruptible. I, therefore, so run, as not uncertainly I so fight, as not beating the air. But I buffet my body, and bring it into bondage; lest, by any means, after having preached to others, I myself should be rejected.

Brethren, do not be children in mind; yet in evil be babes, but in mind be full-grown.

Suffer hardship with me, as a good soldier of Christ Jesus. No one, serving as a soldier, entangles himself in the affairs of life, that he may please him who enrolled him as a soldier. And, if also one contends in the games, he is not crowned, unless he contends lawfully.