This doctrine is far removed from that of Philo, i. e. from the Alexandrine philosophy. Philo may have used, as Tholuck thinks, those very texts of the Old Testament which support the Christian doctrine of the Word, and in the translation of which the LXX. supplied him with the Greek word. The Supreme of Philo is not and can never be related to the world. It is significant that Vacherot, the leading historian of the Alexandrine school of philosophy, doubts whether John the Evangelist ever even heard of the Jewish philosopher of Alexandria. It is pretty much the same with the members of the Neoplatonic Triad as with the Logoj of Philo.
Soul is but a hypostasis of a hypostasis.
The One is not a hypostasis, but above it. The Trinity is really peculiar to Christianity. Three inseparable Hypostases make equally a part of the Divine nature, so that to take away one would be to destroy the whole. The Word and Spirit are Divine, not intermediaries disposed in a hierarchy on the route of the world to God. As Plotinus reproached the Gnostics, the Christian mysticism despises the world, and suppressing the intermediaries who in other doctrines serve to elevate the soul gradually to God, it transports it by one impulse as it were into the Divine nature.