(Ambiya') 21 : 14
قَالُوا يَا وَيْلَنَا إِنَّا كُنَّا ظَالِمِينَ

They will wail: "Oh woe to us! Indeed we were wrongdoers".

Verse 21: 46 also ends with the same Message. The Fujjar who hide and reject Adhikr will witness against their soul that indeed they were disbelievers at the time of death vide verse 7: 37, and on the Day of Judgment vide verse 6: 130. At the death time of any of such Fujjar, Lord will tell him: “Verily you received My verses, you rejected Them, and you acted arrogantly, and you were among the disbelievers” as told in verses 39: 58-59. See explanation 2: 254; 6: 45 and 9: 84-85.