Basic Trinitarianism

For the Christian, the Trinity is a basic truth - one of the first truths that we learn, even if we do not learn it as a theological statement. How is that so? Like Christians since the age of the apostles, we begin our Christian walk confessing that Jesus - and He alone - can save us from our sins: 'There is no other name under heaven given among men by which we must be saved' (Acts 4:12). At the same time, since the earliest days of the Church, it has been clearly understood that only God can save. Two propositions : Jesus is my Saviour and Only God can save. The inescapable conclusion was reflected in the faith of the first Christians: Jesus is Lord (1 Cor.12:3). 

Ch 1 in Trinity and Reality: An Introduction to the Christian Faith, p1