'Blind' in the Bible

Or do you have no regard for the wealth of His kindness and tolerance and patience [in withholding His wrath]? Are you [actually] unaware or ignorant [of the fact] that God’s kindness leads you to repentance [that is, to change your inner self, your old way of thinking—seek His purpose for your life]?

and [if you] are confident that you are a [qualified] guide to the blind [those untaught in theology], a light to those who are in darkness,