'Blind Guides' in the Bible

Leave them alone. They are blind guides of the blind; and if a blind man leads a blind man, both will fall into some pit."

"Alas for you, you blind guides, who say, "'Whoever swears by the Sanctuary it is nothing; but whoever swears by the gold of the Sanctuary, is bound by the oath.'

You blind guides, straining out the gnat while you gulp down the camel!