1 Thessalonians 5:6-8

Therefore let vs not sleepe as do other, but let vs watch and be sober.

For they that sleepe, sleepe in the night, and they that be drunken, are drunken in the night.

But let vs which are of the day, be sober, putting on the brest plate of faith and loue, and of the hope of saluation for an helmet.