The Combined Forces
قُل لَّن يَنفَعَكُمُ ٱلْفِرَارُ إِن فَرَرْتُم مِّنَ ٱلْمَوْتِ أَوِ ٱلْقَتْلِ وَإِذًا لَّا تُمَتَّعُونَ إِلَّا قَلِيلًا
Say, [O Muhammad], "Never will fleeing benefit you if you should flee from death or killing; and then [if you did], you would not be given enjoyment [of life] except for a little."
Nearby ayahs help place verse 33:16 in sequence and meaning.
وَلَوْ دُخِلَتْ عَلَيْهِم مِّنْ أَقْطَارِهَا ثُمَّ سُئِلُوا۟ ٱلْفِتْنَةَ لَـَٔاتَوْهَا وَمَا تَلَبَّثُوا۟ بِهَآ إِلَّا يَسِيرًا
And if they had been entered upon from all its [surrounding] regions and fitnah had been demanded of them, they would have done it and not hesitated over it except briefly.
وَلَقَدْ كَانُوا۟ عَـٰهَدُوا۟ ٱللَّهَ مِن قَبْلُ لَا يُوَلُّونَ ٱلْأَدْبَـٰرَ ۚ وَكَانَ عَهْدُ ٱللَّهِ مَسْـُٔولًا
And they had already promised Allah before not to turn their backs and flee. And ever is the promise to Allah [that about which one will be] questioned.
قُلْ مَن ذَا ٱلَّذِى يَعْصِمُكُم مِّنَ ٱللَّهِ إِنْ أَرَادَ بِكُمْ سُوٓءًا أَوْ أَرَادَ بِكُمْ رَحْمَةً ۚ وَلَا يَجِدُونَ لَهُم مِّن دُونِ ٱللَّهِ وَلِيًّا وَلَا نَصِيرًا
Say, "Who is it that can protect you from Allah if He intends for you an ill or intends for you a mercy?" And they will not find for themselves besides Allah any protector or any helper.
۞ قَدْ يَعْلَمُ ٱللَّهُ ٱلْمُعَوِّقِينَ مِنكُمْ وَٱلْقَآئِلِينَ لِإِخْوَٰنِهِمْ هَلُمَّ إِلَيْنَا ۖ وَلَا يَأْتُونَ ٱلْبَأْسَ إِلَّا قَلِيلًا
Already Allah knows the hinderers among you and those [hypocrites] who say to their brothers, "Come to us," and do not go to battle, except for a few,