We are told that the truth for this time, the third angel’s message, is to be connected with true medical missionary work. As physicians and dentists, we sense a call to mission, a call to action compelled by the gospel commission declared in the first sentence of Matthew 28:19, “Go therefore and make disciples of all the nations”, and the promise in verse 20, “Lo, I am with you always, even to the end of the age.” Jesus tells us that He will be with us through the presence and work of His Holy Spirit. We will study the office work of the Holy Spirit in three key areas: Health, Unity, and Freedom. We will draw from a book written by a physician, the Book of Acts.