﴿ يُنَادُونَهُمْ أَلَمْ نَكُن مَّعَكُمْ ۖ قَالُوا۟ بَلَىٰ وَلَٰكِنَّكُمْ فَتَنتُمْ أَنفُسَكُمْ وَتَرَبَّصْتُمْ وَٱرْتَبْتُمْ وَغَرَّتْكُمُ ٱلْأَمَانِىُّ حَتَّىٰ جَآءَ أَمْرُ ٱللَّهِ وَغَرَّكُم بِٱللَّهِ ٱلْغَرُورُ ﴾

“They [who will remain without] will call out to those [within], “Were we not with you?” - [to which] the others will answer: “So it was! But you allowed yourselves to succumb to temptation, and you were hesitant [in your faith], and you were doubtful [of resurrection]; and your wishful thinking beguiled you until God’s command came to pass: for, [indeed, your own] deceptive thoughts about God deluded you”

Please check ayah 57:15 for complete tafsir.