...But the original belief in divine concepts is there from birth and is not something that comes from any outside influence. The fact that belief in spirits to pantheons of gods is so common is testament to this fact.
Nope - Once more: the predisposition to attribution of hidden agency is present from birth. The wide variety of hidden agent beliefs - only some of which are divine - supports that divine and other supernatural entity concepts are a development of this, not fundamental.
OK
Religion: Bound to believe?
Religion: Bound to believe?
I'll just quote from that:
"From childhood, humans form enduring, stable and important social relationships with fictional characters, imaginary friends, deceased relatives, unseen heroes and fantasized mates.
...
It is a small step from having this capacity to bond with non-physical agents to conceptualizing spirits, dead ancestors and gods..."
It clearly says that conceptualizing spirits and gods is a step which follows from childhood imaginary relationships. It doesn't mention what is thought to be present from birth, so it isn't particularly relevant apart from that.
I already addressed this - the quotes from Dr. Barrett don't support the specific claims in the article - not surprising as it was written by a religious correspondent - but Barrett's indirect quotes support my thesis that concepts of spirits and gods
develop in childhood out of a predisposition to attribute purposeful agency:
"...experiments carried out on children that he says show they instinctively believe that almost everything has been designed with a specific purpose.
...
Children's normally and naturally developing minds make them prone to believe in divine creation and intelligent design."
This is the same old story - supporting my view:
"From infancy, we are, then, excellent ‘‘agency detectors’’
...
Separate bodies of research suggest that young children have a broad tendency to reason about natural phenomena in terms of purpose and an orientation toward intention-based accounts of the origins of natural entities.
...
A review of research on children's concepts of agency, imaginary companions, and understanding of artifacts suggests that by the time children are around 5 years of age, this description of them may have explanatory value and practical relevance."
Here it says that the description of children as
“intuitive theists”—disposed to view natural phenomena as resulting from nonhuman design, only has explanatory value and relevance once they're 5 years old...
So your links are contradicting rather than substantiating your case.