The Family Of Imran - 3:111
They can do you no harm except insult. If they fight you, they will turn and flee, and they will not be helped.
If the disbelievers of the People of the Book fight you, they will turn and flee:
The Banishment/59:11
"Have you not noticed those who are hypocrites? The disbelievers among the people of the Book say to their friends, "If you are driven out, we will go out with you, and we will not obey anyone against you. If you are fought, we will certainly support you."Allah bears witness that they are liars."
The Banishment/59:12
Indeed, if they are driven out, they will not go out with them. If they are fought against, they will not support them. Even if they support them, they turn their backs and flee, then they will not be helped.
The Banishment/59:13
You put fear in their hearts more than Allah. For they are a people without understanding.
The Banishment/59:14
They cannot come together to fight you except in well-protected cities or behind walls. Their strife between them is fierce. You think them to be united, but their hearts are scattered. For they are a people who do not use their minds.