What has happened to the evangelical Church? Many professing Christians have no idea what it means to forsake the world. Their double-lives are full of compromise, worldliness, and often, immorality. From a biblical perspective one might ask 'are they Christian at all'? In his first letter to the Churches, John confronts the heresy of Docetism, and offers twelve marks of a true Christian by which individuals may test themselves to know if they are truly in Christ.