Early on in his ministry, Dave began writing monthly teaching letters to keep in touch with his "partners" and share with them insights he gained about God's character and truths found in the Bible. We have made letters from the past two years available on this site and will add letters as they become available. If you would like to subscribe to the monthly teaching letters, please visit our Subscription page. Media can either be streamed or downloaded to your computer, click here to find out more. Some items are also available on CD and DVD formats at our online store.