Again. Check the reasoning. 'God in three persons' is the phrasing I usually use, but based on the english language (of which I speak a little) being and person can be used interchangably.
From Webster:
Being - To exist in actuality; to have life or reality; to occupy a specified position.
Person - An individual of specified character.
Let me assure you any difference is merely syntactical in the author's case.
"There are three PERSONS - not three beings!"
I stand by this explanation. Looking up in the dictionary is not going to help in this particular case. Why? When refering to anything BUT God, this would be true. Everything that exists has a nature. The WHAT. It is also the source of action. All creatures that can rationalize (or had the potential to - children or mentally ill) are Persons. The WHO. Normally, these co-exist, and we can legitimately call a person a being. No one exists who has two natures - until Jesus came along. Now, we have a person with two distinct natures, or sources of action. Thus, the dictionary will not help much here, as we have an exception to the rule.
To say that God is three beings is to say that God is three persons with three separate natures, as we normally associate persons and natures together, one person having one nature separate from another person. Again, it is a mystery, but it would serve others who are learning about Christianity to use accepted terms, such as three persons in one God, so as not to confuse others.
Regards