Luke 6:39-42 New Revised Standard Version (NRSV)
39 He also told them a parable: “Can a blind person guide a blind person? Will not both fall into a pit? 40 A disciple is not above the teacher, but everyone who is fully qualified will be like the teacher. 41 Why do you see the speck in your neighbor’s[a] eye, but do not notice the log in your own eye? 42 Or how can you say to your neighbor,[b] ‘Friend,[c] let me take out the speck in your eye,’ when you yourself do not see the log in your own eye? You hypocrite, first take the log out of your own eye, and then you will see clearly to take the speck out of your neighbor’s[d] eye.