"Theological underpinnings" refers to the foundational beliefs or ideas that support or form the basis of a particular religious belief system or perspective. Full definition
Church education is a dependent discipline — dependent upon theological underpinnings which both judge and inspire its work. (religion-online.org)
Though Catholic bishops and other church officials in each country purport to adhere to the same theological underpinnings and Church teachings, there are glaring differences in their official responses. (firstthings.com)
I aim to get at some of the theological underpinnings of that unease in language that may seem unfamiliar or even unwelcome, but it is language that is grounded in important Christian affirmations that seek to understand the child as our equal» one who is a gift and not a product. (firstthings.com)