1 Thessalonians 5:3-5

Revised Standard Version Catholic Edition

³ When people say, “There is peace and security,” then sudden destruction will come upon them as travail comes upon a woman with child, and there will be no escape. ⁴ But you are not in darkness, brethren, for that day to surprise you like a thief. ⁵ For you are all sons of light and sons of the day; we are not of the night or of darkness.