You may know whether you have a saving interest in Jesus Christ by your spiritual life. I do not say by your constant liveliness, for this may be lacking at some times in true believers—but you may know it by your spiritual life. You were dead—but now you are alive; and you may know your spiritual life by your spiritual motion from sin and towards God; by your spiritual senses to discern between good and evil; by your spiritual appetite after Christ and His righteousness, and communion with God in His ordinances and the like. If these are not symptoms of this spiritual life in you, it is a sign that Christ is not in you; you have no interest in Him and His deliverance from eternal hell. Thomas Vincent