Fragment V — On John VIII. 12
Now this word “I am” expresses His eternal subsistence. For if He is the reflection of the eternal light, He must also be eternal Himself. For if the light subsists for ever, it is evident that the reflection also subsists for ever. And that this light subsists, is known only by its shining; neither can there be a light that does not give light. We come back, therefore, to our illustrations. If there is day, there is light; and if there is no such thing, the sun certainly cannot be present. If, therefore, the sun had been eternal, there would also have been endless day. Now, however, as it is not so, the day begins when the sun rises, and it ends when the sun sets. But God is eternal light, having neither beginning nor end. And along with Him there is the reflection, also without beginning, and everlasting. The Father, then, being eternal, the Son is also eternal, being light of light; and if God is the light, Christ is the reflection; and if God is also a Spirit, as it is written, “God is a Spirit,” Christ, again, is called analogously Spirit.
Fragment VI — Of the One Substance
The plant that springs from the root is something distinct from that whence it grows up; and yet it is of one nature with it. And the river which flows from the fountain is something distinct from the fountain. For we cannot call either the river a fountain, or the fountain a river. Nevertheless we allow that they are both one according to nature, and also one in substance; and we admit that the fountain may be conceived of as father, and that the river is what is begotten of the fountain.
Fragment VII — On the Reception of the Lapsed to Penitence
But now we are doing the opposite. For whereas Christ, who is the good Shepherd, goes in quest of one who wanders, lost among the mountains, and calls him back when he flees from Him, and is at pains to take him up on His shoulders when He has found him, we, on the contrary, harshly spurn such a one even when He approaches us. Yet let us not consult so miserably for ourselves, and let us not in this way be driving the sword against ourselves. For when people set themselves either to do evil or to do good to others, what they do is certainly not confined to the carrying out of their will on those others; but just as they attach themselves to iniquity or to goodness, they will themselves become possessed either by divine virtues or by unbridled passions. And the former will become the followers and comrades of the good angels; and both in this world and in the other, with the enjoyment of perfect peace and immunity from all ills, they will fulfil the most blessed destinies unto all eternity, and in God’s fellowship they will be for ever (in possession of) the supremest good. But these latter will fall away at once from the peace of God and from peace with themselves, and both in this world and after death they will abide with the spirits of blood-guiltiness. Wherefore let us not thrust from us those who seek a penitent return; but let us receive them gladly, and number them once more with the stedfast, and make up again what is defective in them.