1 Thessalonians 5:4-8
But you, brethren, are not in darkness, that that day should overtake you as a thief; for you are all children of the light and children of the day. We are not of night, nor of darkness. Therefore, let us not sleep as do the rest, but let us be wakeful and sober. For they who sleep, sleep at night, and they who are drunk, are drunk at night. But let us, who are of the day. be sober. Let us put on the breastplate of faith and charity, and for a helmet the hope of salvation.