Matthew 7:3-5

You can see the speck in your friend's eye, but you don't notice the log in your own eye. How can you say, “My friend, let me take the speck out of your eye,” when you don't see the log in your own eye? You're nothing but show-offs! First, take the log out of your own eye; then you can see how to take the speck out of your friend's eye.