1 Thessalonians 5:2-4

DouayRheims(i) 2 For yourselves know perfectly that the day of the Lord shall so come as a thief in the night. 3 For when they shall say: Peace and security; then shall sudden destruction come upon them, as the pains upon her that is with child, and they shall not escape. 4 But you, brethren, are not in darkness, that the day should overtake you as a thief.