Luke 6:39
Then Jesus told them a parable [i.e., a brief story to illustrate His teaching]: "Can a blind person lead a blind person? Will not both of them fall into a ditch?
Matthew 15:14
[So], let these Pharisees alone; they are blind leaders. And if a blind person leads a blind person, both of them will fall into a ditch."
Matthew 23:16-26
"It is too bad for you blind leaders who say that whoever takes an oath 'by the Temple,' it does not [really] mean anything, but whoever takes an oath 'by the gold of the Temple,' he is obligated to [fulfill] the oath.
Matthew 23:33
You snakes! You children of snakes! How do you expect to escape being judged [and condemned] in hell?
Romans 2:19
if you are confident that you can give [spiritual] guidance to blind people and enlightenment to those who are in [spiritual] darkness;
1 Timothy 6:3-5
If anyone teaches a different doctrine [i.e., from what has been urged above], and does not agree to [proclaim the] sound words of our Lord Jesus Christ and to teaching that is godly [i.e., in harmony with godliness],
2 Timothy 3:13
But evil people and impostors will go from bad to worse [in their behavior], deceiving people and being deceived by them.