لَن يَضُرُّوكُمْ إِلَّآ أَذًى ۖ وَإِن يُقَـٰتِلُوكُمْ يُوَلُّوكُمُ ٱلْأَدْبَارَ ثُمَّ لَا يُنصَرُونَ
They will not harm you except for [some] annoyance. And if they fight you, they will show you their backs [i.e., retreat]; then they will not be aided.
Dimensional Analysis
Context
Ye are the best of peoples, evolved for mankind, enjoining what is right, forbidding what is wrong, and believing in Allah. If only the People of the Book had faith, it were best for them: among them are some who have faith, but most of them are perverted transgressors.
They will do you no harm, barring a trifling annoyance; if they come out to fight you, they will show you their backs, and no help shall they get.
Shame is pitched over them (Like a tent) wherever they are found, except when under a covenant (of protection) from Allah and from men; they draw on themselves wrath from Allah, and pitched over them is (the tent of) destitution. This because they rejected the Signs of Allah, and slew the prophets in defiance of right; this because they rebelled and transgressed beyond bounds.
Related Verses
واللهُ أعلمُ بالصَّواب