The Shank Will Be Entwined With The Shank- Quran 75:29
If you take it as idiom in 68:42 as explained by Ghamidi Sahab, then this is how idioms work, they extract the essence of a literal meaning and apply it on general situations i.e. it is agony which causes those women to run. The second one 75:29 could be referring to the kind of powerlessness and weakness where one gives-in to a situation after realizing that there is no way out now as hinted in verses 75:27-28 . These both could be seen as a gradual decline from extreme agony to giving-in to the situation realizing one’s weakness and powerlessness.