I am in the process of typing up my scribbles on Holmes' Quest for the Trinity book - almost there (I will share the link hopefully tomorrow). There are some wonderful quotes in there - as well as reflections that require some serious consideration.
First something I believe many would relate to, perhaps in the wake of what I sense to be a fresh hardening in this area of doctrinal adherence in some Christian organisations and churches, from p173-4:
"It is not a surprise that an appetite grew up amongst those not controversially inclined for a disciplined refusal to go beyond biblical language; at the Salters' Hall Synod of 1719, called in response to the challenge of several recent and powerful anti-Trinitarian texts, notably William Whiston's Primitive Christianity (1711) and Samuel Clarke's Scripture Doctrine of the Trinity (1712), many ministers, including a majority of the Presbyterians and almost all the General Baptists, declined to sign a proposed statement of faith on the grounds that its language was not found in the Bible. They were not closet anti-Trinitarians; they had merely reached the point of believing that definitions couched in technical language generated argument more often than understanding."