Well those things are inherent concepts, of course. The bible is a relatively recent name for the collected books. A “Christian” is an implied concept as well. Monotheism is a well known concept not needing any biblical interpretation. The only thing I meant with that out-of-context statement is that the trinity isn’t biblical either. It is extrapolated. There may in fact be more to the father, the son, the holy ghost than we realize.
Let me make this as simple as possible.
The Bible teaches there is only one True God.
It also teaches that Jesus Christ is God.
That the Holy Spirit is God.
And our Father in heaven is God.
It's not 1+1+1 = 3; it's 1x1x1 =1.