Same material

We were working our way through Matthew, and Michelle had an interesting insight into the plank eye story of Matthew 7 where Jesus says,

Do not judge so that you will not be judged. For in the way you judge, you will be judged; and by your standard of measure, it will be measured to you. Why do you look at the speck that is in your brother's eye, but do not notice the log that is in your own eye? Or how can you say to your brother, 'Let me take the speck out of your eye,' and behold, the log is 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 brother's eye.

Her insight was that the speck and log (or plank in the NIV) are made of the same material. The same material, the same sin. How often are we so sensitive to the small speck of a particular sin in someone's life when there is a glaring plank of that particular sin in our own life? Thanks Michelle.