1 Thessalonians 5:3 For when they shall say, Peace and safety; then sudden destruction cometh upon them, as travail upon a woman with child; and they shall not escape. 4 But ye, brethren, are not in darkness, that that day should overtake you as a thief.
I remember watching an interview with the economic historian Naill Ferguson where he said that financial crises typically come without warning, like a thief in the night. After the fact, when a financial postmortem is done, the economists declare that the signs were there all along — we should have seen it coming, but invariably they never do. The same can be said of the return of Jesus Christ. The signs will be there, but people will never see it coming, and so the Christian’s job is to remain in the light, not the darkness, until that day.