Hello Jerry, Unfortunately, it is not about the Trinity. In some fixed, formulaic phrases, like, "God bless you," "God save the Queen," "God forbid," and also, "Long live the revolution," "Truth be told," "Come what may," "Perish the thought"... we use a special form of the verb called the subjunctive. It is used in these phrases to express a wish and is identical in meaning to "May God bless you," "May the thought perish"... (a bit like saying, "I hope that God blesses you," etc.) For this use of the subjunctive, you just have to learn the phrases where it is used. However, there are other uses of the subjunctive in English, and if you are interested, you could try looking at http://en.wikipedia.org/wiki/Subjunctive Hope this helps! Alvin

This is about the Trinity, the union of Father, Son and Holy Spirit in one God. Google 'Trinity', you will find detailed explainations.