1 Thessalonians 5:2-5

2For yourselves know perfectly that the day of the Lord so cometh as a thief in the night.

3When they are saying, Peace and safety, then sudden destruction cometh upon them, as travail upon a woman with child; and they shall in no wise escape.

4But ye, brethren, are not in darkness, that that day should overtake you as a thief:

5for ye are all sons of light, and sons of the day: we are not of the night, nor of darkness;