For Jesus did not speak of the Trinity as a concept to be analysed - but always as a personal relationship to be entered into. The revelation of three persons in the Godhead is difficult to follow precisely because it may be imagined that it is possible to grasp the mystery if only we think hard enough. Yet the mystery lies in the area of love. You know all sorts of people are fond of repeating the Christian statement that 'God is love'. But they seem not to notice that the words 'God is love' have no real meaning unless God contains at least two persons.
Love is something that one person has for another person.
If God was a single person, then before the world was made, He was not love. Of course, what these people often mean is that 'Love is God' meaning by this that our feelings of love, however and wherever they arise, and whatever results they produce, are to be treated with great respect. God is love'. We mean that the living, dynamic activity of love has been going on in God forever and has created everything else. This creative love is what we call the Holy Spirit - that is why He is given the title Lord and Giver of Life.