I make it just the same - a Triune God. Not something I would play around with, considering it's one of the most fundamental doctrines of Christianity.

My view is threefold:

1. Your story's God doesn't have to be explicitly Triune, at least not if Christ hasn't come yet. After all, for most of our world's history, the Israelites were the keepers of His revelation and didn't know He was Triune.
2. Making God explicitly non-Triune puts you outside the realm of Christian fiction.
3. If you're going to talk explicitly about the Trinity, make sure you know what the Christian doctrine says. The Persons are not parts of God, nor forms of God. They are not like ice, water, and steam, nor are They much like a three-leaf clover. A lot of evangelicals are what is called material heretics with respect to the Trinity; that is, they may not have explicitly rejected the orthodox understanding and may even think they hold it, but they don't.

In my story, I'm wondering how to display the Trinity. For those of you who do this, do you just make the same, triune God present in your story? Or are there three persons representing the three parts of God?

In my story, I'm wondering how to display the Trinity. For those of you who do this, do you just make the same, triune God present in your story? Or are there three persons representing the three parts of God?

Somewhat similar to what Sam said you might want to think about whether Christ has come yet or not, and in agreement with Crush its not something I would play around with much.

The majority of my stories has a Triune God, mostly in the form of a humble man giving advice. I have tried the three parts of God, however I have found that that seemed to detract away from the message of the Trinity.

I hate to be a pedantic jerk, but the Persons are not parts. If we're going to do this, we need to be very careful to do it right.

I realised that after I tried to place them into three. It won't work, because as you stated, the Persons are not parts and should not be treated as so.

Ah, OK. Yeah, representing the Trinity as such would be kind of hard. No man can see God and live. No man has seen the Father at any time. It's more important, I think, for your work to acknowledge or at least not contradict the nature of the Trinity than for all three Persons to be, properly speaking, "seen." After all, only One is visible in the ordinary sense.

So if I choose, as I have done for one particular story to represent the Trinity in the human body of a humble man representing the Christ, who is in essence represents the Trinity as we know it, would this contradict the Nature of the Trinity?

I think it would contradict the essence of the Trinity as we know it (unless you explained that there are three separate entities in the man), but I don't think a novel must have a Trinitarian God if it's set in a world other than our own. As long as it doesn't look like you as an author are actually promoting unitarianism, or (to go to the other side), polytheism. Otherwise, I don't think every single novel must have a Trinitarian God. Course, it might also depend on how big of a role the 'God' of your novel has in your book...

So if I choose, as I have done for one particular story to represent the Trinity in the human body of a humble man representing the Christ, who is in essence represents the Trinity as we know it, would this contradict the Nature of the Trinity?

Am I to take Aratrea's suggestion as referring to some kind of incarnation of all three Persons in one body?

Umm, kind of? I was merely saying that that would be the only way for it to really remain a biblical representation of the Trinity (if you still consider that a semi-biblical way to view them.) I wasn't necessarily suggesting it though, as I don't think it's necessary to have the 'God' in your novels be representations of the Trinity...

Well, if the God in your novels is explicitly non-triune, your novel is as Christian as Muhammad.

Really? I guess that depends on your definition of explicitly non-triune. I think it more depends on the God-figure's role in the story. If he plays a major role and it is clear to the reader that this is a Unitarian God, then I can understand it. But if he's more minor/it isn't clear that this is a non-Triune God, then even if in the world that's how he is, if it doesn't enter into the book, I'm not sure if that would make a book non-Christian...

Well, if it isn't clear, that wouldn't fall under "explicitly non-Triune." But really, any Otherworld where God is not a Trinity is an Otherworld where Christianity is false. You can write it if you want (and I've read books like that; I'm not going on a moral crusade about it or anything), but I wouldn't consider that a Christian work.