Luke 6:41-42 (NIV) 41 "Why do you look at the speck of sawdust in your brother's eye and pay no attention to the plank in your own eye? 42 How can you say to your brother, 'Brother, let me take the speck out of your eye,' when you yourself fail to see the plank in your own eye? You hypocrite, first take the plank out of your eye, and then you will see clearly to remove the speck from your brother's eye."
Romans 12:3 (NIV) For by the grace given me I say to every one of you: Do not think of yourself more highly than you ought, but rather think of yourself with sober judgment, in accordance with the measure of faith God has given you.
Philippians 2:3 (NIV) Do nothing out of selfish ambition or vain conceit, but in humility consider others better than yourselves.
When we put ourselves in the other person's place, we're less likely to want to put him in his place. —Farmer's Digest
Men of Integrity, Vol. 4, no. 3, Today's Best Illustrations – Volume 5, (Carol Stream, IL: Christianity Today, 1997), WORDsearch CROSS e-book, Under: "CHARITABLENESS".