The word person affords a large margin for misapprehension, as well as definition. In French the equivalent word is personne. In Spanish, Italian, and Latin, it is persona. The Latin verb personare is compounded of the prefix per (through) and sonare (to sound).
In law, Blackstone applies the word personal to bodily presence, in distinction from one's appearance (in court, for example) by deputy or proxy.
Other definitions of person, as given by Webster, are "a living soul; a self-conscious being; a moral agent; especially, a living human being, a corporeal man, woman, or child; an individual of the human race." He adds, that among Trinitarian Christians the word stands for one of the three subjects, or agents, constituting the Godhead.
In Christian Science we learn that God is definitely individual, and not a person, as that word is used by the best authorities, if our lexicographers are right in defining person as especially a finite human being; but God is personal, if by person is meant infinite Spirit.
We do not conceive rightly of God, if we think of Him as less than infinite. The human person is finite; and therefore I prefer to retain the proper sense of Deity by using the phrase an individual God, rather than a personal God; for there is and can be but one infinite individual Spirit, whom mortals have named God.
Science defines the individuality of God as supreme good, Life, Truth, Love. This term enlarges our sense of Deity, takes away the trammels assigned to God by finite thought, and introduces us to higher definitions. MBE