"Concerning the times and the season, you have no need for anything to be written to you. For you know well that a reckoning may come like a thief in the night. When people are saying, 'At last we have peace and prosperity,' then suddenly disaster comes, and they will be swept away. But you are not in darkness, for that day to catch you unawares. For all of you are children of the light, not of the darkness of night. Let us then abide, and be watchful."
1 Thess 5:1-5