The Church of God (Anderson, Indiana) is a holiness Christian body with roots in Wesleyan and also in the restorationist traditions. Founded in 1881 by Daniel Sidney Warner, the church claims 1,170,000+ adherents. While having some characteristics of a denomination, the Church of God considers itself Non-denominational Christianity.
One of its more distinctive features is that there is no formal membership, since the movement believes that true biblical salvation, which will result in a life free from sin, makes one a member.
Similarly, there is no formal creed other than the Bible. Accordingly, there is much official room for diversity and theological dialogue, even though the movement's culture is strongly rooted in Wesleyan holiness theology.