Some of us believe God and Jesus are two separate beings, and for the sake of the child I'm going to be painfully honest here. Some say, oh simply tell him the truth, explain it like this, or whatever, but fact is, as ludicrous as some of us find that God is more than one individual, the child is just going to not get that at all.
I tried to wrap my mind around it, I really did, then I read this long drawn out, very weird sounding Nicene Creed was it? and immediately realized it was just another so-called truth man came up with, and there is a very good reason it's confusing. I could go on there but I've done it before so, I'll keep this somewhat mild.
Also, and to keep myself out of hot water, I'm just speaking in general here. I'm afraid when this type thing is taught to children, it can be counter productive for their faith. I mean I can see them now trying to decide which road to take as say a teen, and thinking how weird and confusing something that should be a straightforward simple message sounds and enough of these "higher truths" actually affecting their faith and not in a good way. Sounds very possible to me anyway.
So, if you believe that, I don't know what to tell you except for what I have already said. If you don't go the 3n1 route, then just tell him God is Jesus' daddy and vice versa....that is after all what the Bible says.
