that each of these names denotes a sword; I am not numbering unities but
simply repeating one thing, and in saying "sword, brand, blade," I
reiterate the one thing and do not enumerate several different things
any more than I produce three suns instead of merely mentioning one
thing thrice when I say "Sun, Sun, Sun."

So then if God be predicated thrice of Father, Son, and Holy Spirit, the
threefold predication does not result in plural number. The risk of
that, as has been said, attends only on those who distinguish Them
according to merit. But Catholic Christians, allowing no difference of
merit in God, assuming Him to be Pure Form and believing Him to be
nothing else than His own essence, rightly regard the statement "the
Father is God, the Son is God, the Holy Spirit is God, and this Trinity
is one God," not as an enumeration of different things but as a
reiteration of one and the same thing, like the statement, "blade and
brand are one sword" or "sun, sun, and sun are one sun."

Let this be enough for the present to establish my meaning and to show
that not every repetition of units produces number and plurality. Still
in saying "Father, Son, and Holy Spirit," we are not using synonymous
terms. "Brand and blade" are the same and identical, but "Father, Son,
and Holy Spirit," though the same, are not identical. This point
deserves a moment's consideration. When they ask "Is the Father the same
as the Son?" Catholics answer "No." "Is the One the same as the Other?"
The answer is in the negative. There is not, therefore, complete
indifference between Them; and so number does come in--number which we
explained was the result of diversity of substrates. We will briefly
debate this point when we have done examining how particular predicates
can be applied to God.