1 Thessalonians 5:4-8

But you, beloved brothers and sisters, are not living in the dark, allowing that day to creep up on you like a thief coming to steal. For you are all children of the light and children of the day. We don’t belong to the night nor to darkness. This is why we must not fall asleep, as the rest do, but keep wide awake and clearheaded. For those who are asleep sleep the night away, and drunkards get drunk at night. But since we belong to the day, we must stay alert and clearheaded by placing the breastplate of faith and love over our hearts, and a helmet of the hope of salvation over our thoughts.