Where Is Your Strength — Leonard Ravenhill
In this sermon, the preacher talks about a man who was a menace to his enemies. His enemies tried to find his secret and eventually captured him. They bound him, blinded him, and made him work on a treadmill. However, this man had incredible strength and was able to defeat his enemies using the jawbone of an ass. The preacher then discusses the importance of examining one's prayer life and Bible reading when feeling spiritually dry, and encourages listeners to seek God's guidance in identifying what may be wrong.
Source: https://www.sermonindex.net/speakers/leonard-ravenhill/where-is-your-strength/
Transcript