It must be difficult for a non-denom church to operate without a common doctrine or standard form of worship beyond the most basic set of common beliefs. I'm assuming here that the members of a non-denom church come from a variety of Christian backgrounds.
Isn't there a real danger that, over time, the church will begin to develop its own doctrines, rites and rules and become just another one of the denominational divisions?
OB
Well, non-denom churches do operate with a common doctrinal standard and form of worship, many have official "what we believe" statements, which is really just a creed by another name. And so there really isn't a functional difference between a non-denominational and a denominational church; it's just that the non-denominational church is a denomination consisting of only a single independent congregation.
In fact, I'd argue more than even that; I've never encountered a non-denominational church whose beliefs and practices aren't, in essence, broadly "Baptistic".
As an example, the first church I was part of was the church my mom grew up in, and where my parents met. It called itself "Independent Bible Church", known more informally as IBC. It was a non-denominational church, but if one looked at its beliefs and practices it'd be pretty hard to tell the difference between it and a lot of modern Baptist churches. They practiced single immersion-only baptism of only professing believers, they subscribed to a broad mish-mash of Arminian and Calvinistic ideas in the vein of many 20th century Neo-Evangelical teachers incorporating elements of 19th century; i.e. human beings must make a deliberate personal choice and professed belief in Jesus, His atoning work, and resurrection as the means by which to become saved; a rejection of (or at least minimalist use of) traditional ecclesiastical worship and practice, such as a subscription to a memorialist view of the Eucharist which they prefer to call Communion, and so on and so forth.
I'd say that, at least in my own experience, one of the few things that really distinguishes different non-denominational churches is whether or not, or to what degree, the 20th century charismatic movement(s) have influenced it. The church I mention above, IBC, they were pretty staunchly non-charismatic. And as far as I know, continue to be as such.
But there is generally going to be a pretty strong trend toward the Neo-Evangelical tradition, and thus with strong Baptistic and Revivalistic influences.
This of course is not going to be universally true (though I am unaware of any exceptions to what I've described above), but my overall observations over my lifetime indicate that, at the very least, this is generally true.
In fact I thought my childhood church
was a Baptist church, until I discovered differently only in my teenage years long after my family had left.
-CryptoLutheran