Ignorance

{17:36} and follow not that of which you have not the knowledge; surely the hearing and the sight and the heart, all of these, shall be questioned about that.

{2:170} and when it is said to them, follow what Allah has revealed, they say: Nay! we follow what we found our fathers upon. What! And though their fathers had no sense at all, nor did they follow the right way.

Comment: Blind faith is disallowed in Islam.

{49:6} O you who believe! if an evil-doer comes to you with a report, look carefully into it, lest you harm a people in ignorance, then be sorry for what you have done.

{2:78} and there are among them illiterates who know not the Book but only lies, and they do but conjecture.

{62:5} The likeness of those who were charged with the Taurat, then they did not observe it, is as the likeness of the ass bearing books, evil is the likeness of the people who reject the communications of Allah; and Allah does not guide the unjust people.

Comment: This only refers to those Jews who did not uphold the Torah. As the Quran explains:

{5:68} Say: O followers of the Book! You follow no good till you keep up the Taurat and the Injeel and that which is revealed to you from your Lord;