﴿ رُّبَمَا يَوَدُّ ٱلَّذِينَ كَفَرُوا۟ لَوْ كَانُوا۟ مُسْلِمِينَ ﴾

“And it will come to pass that those who are [now] bent on denying this truth will wish that they had surrendered themselves to God [in their life time].”

Please check ayah 15:3 for complete tafsir.