﴿ جُندٌۭ مَّا هُنَالِكَ مَهْزُومٌۭ مِّنَ ٱلْأَحْزَابِ ﴾

“[But] there it is: any and all human beings, however [strongly] leagued together, are bound to suffer defeat [whenever they refuse to accept the truth].”

In verse 6, it was said: وَانطَلَقَ الْمَلَأُ مِنْهُمْ أَنِ امْشُوا وَاصْبِرُ‌وا عَلَىٰ آلِهَتِكُمْ (And the leaders among them went forth saying (to their followers)," Walk away (from the Prophet) and stay firm on (adhering to) your gods - 12). This is pointing out to the event mentioned above that, once they heard the call to pure monotheism (tauhid), they left the meeting.