This week's sermon at Union Congregational Church in Somonauk grew out of Monday's post on i.ucc (Pep talks.) You can still find a little bit of the post and the direction is similar. The sermon goes much deeper, I think.
UPDATE: The podcast has quite a bit of stuff in it that wasn't in the original text -- be sure to listen towards the end!
"Sincere Faith" text
"Sincere Faith" podcast