1 Thessalonians 5:3

[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.

Treasury of Scripture Knowledge

Summary

Moreover the multitude of thy strangers shall be like small dust, and the multitude of the terrible ones shall be as chaff that passeth away: yea, it shall be at an instant suddenly.

Bible References

At an

1 Thessalonians 5:3
[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.