1 Thessalonians 5:4-8

4But you, brothers, are not in the darkness so that this day should overtake you like a thief. 5For you are all sons of the light and sons of the day; we do not belong to the night or to the darkness. 6So then, let us not sleep as the others do, but let us remain awake and sober. 7For those who sleep, sleep at night, and those who get drunk, get drunk at night. 8But since we belong to the day, let us be sober, putting on the breastplate of faith and love, and the helmet of our hope of salvation.