I Thessalonians 5:7

It is high time to awake out of sleep: for now is our salvation nearer than when we believed.—Therefore let us not sleep, as do others; but let us watch and be sober.

For they that sleep sleep in the night: and they that be drunken are drunken in the night.

Every man that striveth for the mastery is temperate in all things. Now they do it to obtain a corruptible crown; but we an incorruptible.

I therefore so run, not as uncertainly; so fight I, not as one that beateth the air: but I keep under my body, and bring it into subjection: lest that by any means, when I have preached to others, I myself should be a castaway.