'Blind Guides' in the Bible

Ponder these things once in your mind, and wonder: Blinded are they themselves, and the blind guides of others; they are drunken, but not with wine; they are unstable, but not through strong drink.

Woe be unto you, blind guides, for ye which say, 'Whosoever swear by the temple, it is nothing: but whosoever swear by the gold of the temple, he offendeth.'

Ye blind guides, which strain out a gnat, and swallow a camel.