Tillich's concept of faith

From Theoretical To Practical: Developing Tillich's Apologetics by Wendy Morrison found at:
http://ejournals.bc.edu/ojs/index.php/lumenetvita/article/view/1700/1547

Click on Download this PDF File at the bottom left of the web page.

And

The God above God found at
http://edwardfeser.blogspot.com/2011/04/god-above-god.html

You might also want to look at: The webpage
http://www.quodlibet.net/articles/smith-tillich.shtml

It contains the article What Is Faith?: An Analysis of Tillich's 'Ultimate Concern'

Write 500-600 words explaining Tillich's concept of faith. Be sure to include explanations or answers to each of the following issues. Use examples to strengthen your explanations.

1) What does it mean to say that a living being is concerned about something?

2) What is an ultimate concern? What is the relationship between how a person lives her life and her ultimate concern?

3) Can we be mistaken in our faith? What are the consequences of such mistaken faith?

4) How does Tillich describe God?

5) Discuss one important contrast you noticed between Tillich's ideas about faith and the ideas about faith usually found in the church.