You want something that you cannot have, so you commit murder. And you covet something but cannot obtain it, so you engage in quarrels and fights. You do not have because you do not ask.
And now, brethren, I want to remind you of the gospel I proclaimed to you, which you received and in which you stand firm. Through it you are also being saved, provided that you are holding fast to what I proclaimed to you. If not, then you have believed in vain.
While physical training has some value, the benefits of godliness are unlimited, since it holds out promise not only for this life but also for the life to come.