1 Thessalonians 5:2-4 NIV

[2] for you know very well that the day of the Lord will come like a thief in the night. [3] While people are saying, “Peace and safety,” destruction will come on them suddenly, as labor pains on a pregnant woman, and they will not escape. [4] But you, brothers and sisters, are not in darkness so that this day should surprise you like a thief.