1 Thessalonians 5:3 in the World English Bible
For when they are saying, “Peace and safety,” then sudden destruction will come on them, like birth pains on a pregnant woman. Then they will in no way escape.
Context
2 For yourselves know perfectly that the day of the Lord so cometh as a thief in the night.
3 For when they shall say, Peace and safety; then sudden destruction cometh upon them, as travail upon a woman with child; and they shall not escape.
4 But ye, brethren, are not in darkness, that that day should overtake you as a thief.