If you are looking to have a Bible Study on humility, here are materials that you might find helpful, some in my books, blogs, and other resources online. My books quote a great deal directly from the Bible, so that might help you find what you need:
In my book “The Importance of Christian Friendships“, the relevant chapter on humility is Chapter 4 (“Christian Friends are Humble, not Proud”).
In my book “Finding Freedom in God’s Promises“, the relevant chapter on humility is Chapter 10 (“Leading a Humble Life”).
For interesting Christian blogs on humility, go to iBelieve.com and Blogs.Bible.org.
For Bible references to humility, go to the Christian Bible Reference Site.
For interesting quotes on humility, see Brainy Quote.