Kehillah in Thessalonika I 5:3-5

Orthodox Jewish Bible

³ Whenever they say, "Shalom and Bitachon!" then sudden churban (destruction) will come upon them like the chevlei leydah (birth pangs) of the isha with a baby in her womb. And they can certainly not escape.

⁴ But you, Achim b’Moshiach, are not in choshech that the Yom should overtake you like a ganav.

⁵ For all of you are Bnei Ohr and Bnei Yom; we are not of the Lailah nor of the Choshech.