4 Bible Verses about Blindness, Symbolic

And therefore if thy right eye cause thee to offend, pluck it out and cast it from thee; for it is better for thee that one part of thee perish, than that thy whole body should be cast into hell:

but if thine eye be bad, thy whole body will be dark. If therefore the light that is in thee be darkness, how great is that darkness!

and if thine eye cause thee to offend, pluck it out and cast it from thee; it is better for thee to enter into life with but one eye, than having two eyes to be cast into hell-fire.

And He said to them by way of parable, Can a blind man guide a blind man? will they not both fall into a ditch?