None is really necessary, unless you feel compelled to do so. I appreciate your concern, and I know you position very well. The problem I had with it is it always seemed lacking. Basically it has always been taught as God is some how all three people but at the same time magically just one at with no explanation given. Or it has been explained as you have, in that God has a multiple personality disorder. (United states of Tara.) where one being takes on several different personalities.
When you look at it the creed and what is actually written in the bible neither of the two explanations really represent what is said in either the creed or the bible. At the most simple basic (A child's understanding) is that God is one Job or A title held by A Father, A Son, and The Holy Spirit.
We know the Son Prays to the Father that denotes the separation of two individuals. (Unless there is indeed a personality disorder going on here) and we know the Holy Spirit Descended on Christ after His Baptism.
Denoting a second separation. So we Have Father, Son, and Holy Spirit all occupying the same time in one event. This points to Three distinct and separate individuals all operating under one authority. That Authority is known as God. This is known as the trinity Three incarnations of God, but only one God.
Again just like we have three branches of government but the US only has one governing body. How is this possible you ask?? The word Government much like the word God is being used as a phrase that encompasses and describes the individual powers held within this collective organization.
So that would mean God is not a name. God is a title. This means (logically and factually) that there is only one God, and I believe in that God, Which is made up of the Father almighty, creator of heaven and earth. Jesus Christ, his only Son, our Lord, who was conceived by the Holy Spirit, born of the Virgin Mary, suffered under Pontius Pilate, was crucified, died, and was buried; he descended to the dead. On the third day he rose again; he ascended into heaven, he is seated at the right hand of the Father, and he will come to judge the living and the dead. I also believe in the Holy Spirit being the third incarnation of God, the holy Church Body, the communion of saints, the forgiveness of sins, the resurrection of the body, and the life everlasting.
The only thing that changes, is your personal understanding of How God is three distinct personalities and yet remains one Deity. I personally believe in only accepting and teaching doctrine that is grounded in the bible 1st and reality 2nd. That means if a Doctrine is not found in scripture, like God the Son and God the Holy Spirit being the actual literal names of God. Then I will not teach it as such.
That is why I asked that you to scripturally show the proof for your assertion. I know what the creed says, but I also know what the bible says, and in the way you chose to represent the creed it was not being supported by the bible. No personal offense intended, but your explanation never made any sense to me either. Why would God represent Himself as multiple personalities, and then create or allow for the creation of humans with these characteristics be seen in a negative light? When a person displays multiple personalities it is generally seen as a disorder, not as an attribute or defining characteristic of God. Why would we be allowed to view such a holy state as something that needs to be suppressed by medication or in the old days as one having multiple demons?
The Explanation that God is a title and not a name cures all of the problems created by your preferred explanation of the creed. Again the Creed Does not change only your understanding of it does. So one more time, unless you can show me scripturally where I am wrong, there is absolutely nothing that needs to be said, unless you simply want to say something.
Also note I gave you some high ground to bow out on when I quoted Hannibal Lecter.