Just what is the trunk of the tree in God's way of life? What is the trademark or the main message of God's truth, and, therefore, the main message of the Church of God? What is the core of our belief? What is the true gospel message we're commissioned to take to the world? That's what we're looking for, is the trunk of the tree of God's truth. And, granted, there are branches that branch off of the main trunk, and we'll come to see that toward the end of the sermon. But what is the main trunk of it, the trunk of the tree of God's way?