Probably Kathryn Kuhlman best teaching on faith. She starts out talking on the book of Hebrews but ends up sharing errors in seeking healing and how to obtain the faith to be healed.

If you want another talk on faith then I suggest podcast # 85 you will find it here https://rss.com/podcasts/kathryn-kuhlman-radio/1987880/ or on Apple Podcasts https://podcasts.apple.com/us/podcast/faith-by-kathryn-kuhlman-healing-part-2-of-2/id1789534036?i=1000703577710 or on YouTube