3 Bible Verses about Hard Labor

Know ye not that they who run on the course, all run indeed, yet but one obtaineth the price? So run, that ye may obtain. And every one who contendeth [in the games] is temperate in all things: they indeed therefore do it that they may receive a corruptible crown, but we an incorruptible. I therefore so run not as uncertainly; so do I exercise with my fists, not as striking the air:read more.
but I beat down my body, and bring it into subjection, that I may not by any means, after having preached to others, myself become reprobate.

As yet ye have not resisted unto blood, struggling against sin.

if haply I may attain unto the resurrection of the dead. Not that I have already attained, or am now perfect: but I pursue, that I may overtake that for which also by his apprehension of me I am destined by Christ Jesus. Brethren, I count not myself to have overtaken it; but this one object I pursue, forgetting the things which are behind, and reaching out to those which are before,read more.
I press towards the mark for the prize of the divine calling from on high in Christ Jesus.