Gregory of Nazianzus, Basil of Caesarea and John Chrysostom (Cambridge, University Library, MS Nn.1.23)

neither beginning nor
ending; like a certain
sea of essence,
infinite and boundless;
transcending every
concept and time and
nature; sketched by the
mind alone; and
this, very dimly
and moderately; not
from the things concerning
Him directly, but from the
things around Him;
one image gathered
from another, into a
single image of the truth;
fleeing before it
can be grasped; and
escaping before it
can be understood;
shining upon our
ruling faculty original: "ἡγεμονικόν" (hegemonikon). In Stoic and Patristic thought, this refers to the highest part of the soul—the reason or intellect—which directs human action and perceives spiritual truths.
only as much as the
speed of a lightning flash
arrests the sight.
In my opinion, this is
so that by what is
graspable He might
draw us toward Himself;
for that which is
completely ungraspable
is hopeless and
beyond attempt;

but by what is
ungraspable, He is
wondered at; and being
wondered at, He is
desired the more;
and being desired,
He purifies; and
purifying, He makes us
godlike; original: "θεοειδεῖς" (theoeideis). Gregory describes "theosis" or deification, where the human person, through purification and desire for God, begins to reflect the divine nature.
and when we have
become such, He
might then converse
with us as with
His own; my
discourse dares [to say]:
God to gods, becoming
united and being
known; and perhaps
just as much as He
already knows those
who are known by Him.
Infinite, then, is the
Divine and hard to
contemplate; and
this alone is completely
graspable concerning
Him: His infinity;
even if one thinks that
simple being belongs
to His nature; or
that His nature is
to be at all; or
only to be simply.
For what could one say
of His nature or of
the inquiry?
For simplicity is
certainly not His
nature; since neither...

% And these things, etc. purification original: "% καὶ ταῦτα κ.τ.λ. καθαρμός" (kai tauta k.t.l. katharmos). This marginal note likely acts as a finding aid or a summary of the section's theme on purification.