He frowned 80:42

Ranked by the Jaccard overlap of the two verses’ root sets — shared roots over combined roots — after removing a stoplist of ubiquitous roots. The score is shown; the shared roots are listed so you can see exactly what drove it.

1. The Disbelievers 109:10.50
   ك ف ر
2. Those drawn up in Ranks 37:1700.50
   ك ف ر
3. The Dawn 89:10.50
   ف ج ر
4. Noah 71:270.33
   ك ف رف ج ر
5. The Poets 26:190.33
   ك ف ر
6. Sheba 34:170.33
   ك ف ر
7. The letter Saad 38:740.33
   ك ف ر
8. Muhammad 47:110.33
   ك ف ر