Now, if all things which are the Father's are also Christ's, certainly among those things which exist is the omnipotence of the Father; and doubtless the only-begotten Son ought to be omnipotent, that the Son also may have all things which the Father possesses. “And I am glorified in them,” He declares. For “at the name of Jesus every knee shall bow, of things in heaven, and things in earth, and things under the earth; and every tongue shall confess that the Lord Jesus is in the glory of God the Father.” Therefore He is the efflux of the glory of God in this respect, that He is omnipotent— the pure and limpid Wisdom herself— glorified as the efflux of omnipotence or of glory. (Book I, Chapter 2, Part 10)

Origen's fellow Alexadrian, Plotinus, argued that the first hypostatsis (ὑπόστᾰσις): the Good, the Beautiful, the One overflows without diminishment.

As light is the efflux - the flowing out - of the sun, a spontaneous, unconstrained, and perpetual manifestation of the sun's internal processes - so also is glory, wisdom, omnipotence, and Christ an efflux of God.

Plotinus also uses the analogy of a stream which is its own source, whose currents flow in all directions, but which continues to subsist immutably in and for itself.