The audio of all these sermons can be found at Sermon Audio.

In Everything By Prayer by A.W. Tozer (preached 1960)
Why everything in God’s church should be done by prayer. People believe they are self-sufficient and have “the instinctive wisdom of the race.” We believe in the soundness of our moral judgements and the “goodness” of people. Tozer counters this. He mentions “beatniks” so you know this is vintage!

How Satan Gets Into Your Head by Charles A. Stewart (Jan 16, 2005)
How Satan manipulates your emotions and controls your actions by controling what you think about.

More Than Enough Hope by Jim Berg (October 13, 2000)
Dispair is the exact opposite of hope. “Dispair happens when a man begins concluding certain things about life in light of the fact that his expectations have been thwarted.”

Interview of Leonard Ravenhill by David Mainse (May 10, 1983)
The subject is revival and prayer.

Ten Shekels and a Shirt by Paris Reidhead (1980)
One of the most popular sermons you can find on the internet. Judges 17 — the story of Micah.

Shocking Youth Message Stuns Hearers — So Shocking and Biblical the Preacher Was Never Invited Back (Matthew 7:13-27) by Paul Washer (May 29, 2006)
Preached to about 5,000 youth. “What is the sign that someone has become a genuine Christian? That you do as a style of life the will of the Father. Your profession of faith is no proof that you’re born again because everybody in this whole country professes faith in Jesus Christ.” Very powerful sermon.