I Thessalonians 5:8

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.

Let us, who are of the day, be sober, putting on the breastplate of faith and love; and for an helmet, the hope of salvation.

Gird up the loins of your mind, be sober, and hope to the end for the grace that is to be brought unto you at the revelation of Jesus Christ.—Stand therefore, having your loins girt about with truth, and having on the breastplate of righteousness; above all, taking the shield of faith, wherewith ye shall be able to quench all the fiery darts of the wicked. And take the helmet of salvation, and the sword of the Spirit, which is the word of God.

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.