1 Thessalonians 5:2-3 for you know perfectly well that the day of the Lord - : i.e., when He returns, See II Thess. will arrive like a thief coming in the night.

AUV⁽ⁱ⁾ ² for you know perfectly well that the day of the Lord [i.e., when He returns, See II Thess. 2:1-2] will arrive like a thief coming in the night. ³ [For] when people are saying, “Peace,” and “Safety,” then [is when] destruction will come upon them suddenly, like labor pains on a pregnant woman, and they will not be able to escape it.