God in the form of man and is God

Now, O you, my children, our Instructor is like His Father God, whose son He is, sinless, blameless, and with a soul devoid of passion; God in the form of man, stainless, the minister of His Father’s will, the Word who is God, who is in the Father, who is at the Father’s right hand, and with the form of God is God.

Clement of Alexandria
The Paedagogus, Book I
Chapter II

Jesus is eternal and is the model human

If it is thy wish, be thou also initiated; and thou shall join the choir along with angels around the unbegotten and indestructible and the only true God, the Word of God, raising the hymn with us. This Jesus, who is eternal, the one great High Priest of the one God, and of His Father, prays for and exhorts men.

This am I, this God wills, this is symphony, this the harmony of the Father, this is the Son, this is Christ, this the Word of God, the arm of the Lord, the power of the universe, the will of the Father; of which things there were images of old, but not all adequate. I desire to restore you according to the original model, that you may become also like Me. I anoint you with the ungent of faith, by which you throw off corruption, and show you the naked form of righteousness by which you ascend to God.

Clement of Alexandria
Exhortation to the Heathen
Chapter XII

Jesus is most manifest Deity and equal to God

For it was not without divine care that so great a work was accomplished in so brief a space by the Lord, who, though despised as to appearance, was in reality adored, the expiator of sin, the Savior, the clement, the Divine Word, He that is truly most manifest Deity, He that is made equal to the Lord of the universe; because He was His Son, and the Word was in God, not disbelieved in by all when He was first preached, nor altogether unknown when, assuming the character of man, and fashioning Himself in flesh, He enacted the drama of human salvation: for He was a true champion and a fellow-champion with the creature.

Clement of Alexandria
Exhortation to the Heathen
Chapter X

God alone made the universe

How great is the power of God! His bare volition was the creation of the universe. For God alone made it, because He alone is truly God. By the bare exercise of volition He creates; His mere willing was followed by the springing into being of what He willed.

Clement of Alexandria
Exhortation to the Heathen
Chapter IV

God exerted Himself in Christ to save us

He awed men by the fire when He made flame to burst from the pillar of cloud—a token at once of grace and fear: if you obey, there is the light; if you disobey, there is the fire; but since humanity is nobler than the pillar or the bush, after them the prophets uttered their voice,—the Lord Himself speaking in Isaiah, in Elias,—speaking Himself by the mouth of the prophets. But if thou dost not believe the prophets, but supposest both the men and the fire a myth, the Lord Himself shall speak to thee, “who, being in the form of God, thought it not robbery to be equal with God, but humbled Himself,” He, the merciful God, exerting Himself to save man. And now the Word Himself clearly speaks to thee, shaming thy unbelief; yea, I say, the Word of God became man, that thou mayest learn from man how man may become God.

Clement of Alexandria
Exhortation to the Heathen
Chapter I

The Word who appeared to man is both God and man

Well, inasmuch as the Word was from the first, He was and is the divine source of all things; but inasmuch as He has now assumed the name Christ, consecrated of old, and worthy of power, he has been called by me the New Song. This Word, then, the Christ, the cause of both our being at first (for He was in God) and of our well-being, this very Word has now appeared as man, He alone being both, both God and man—the Author of all blessings to us; by whom we, being taught to live well, are sent on our way to life eternal.

Clement of Alexandria
Exhortation to the Heathen
Chapter I

Father, Son and Holy Spirit are one essence

For, as we acknowledge a God, and a Son his Logos, and a Holy Spirit, united in essence,—the Father, the Son, the Spirit, because the Son is the Intelligence, Reason, Wisdom of the Father, and the Spirit an effluence, as light from fire; so also do we apprehend the existence of other powers, which exercise dominion about matter, and by means of it, and one in particular, which is hostile to God:

Athenagoras of Athens
A Plea for the Christians
Chapter XXIV

Oneness of the Father, Son and Spirit

Are, then, those who consider life to be comprised in this, “Let us eat and drink, for to-morrow we die,” and who regard death as a deep sleep and forgetfulness (“sleep and death, twin brothers”), to be accounted pious; while men who reckon the present life of very small worth indeed, and who are conducted to the future life by this one thing alone, that they know God and His Logos, what is the oneness of the Son with the Father, what the communion of the Father with the Son, what is the Spirit, what is the unity of these three, the Spirit, the Son, the Father, and their distinction in unity;

Athenagoras of Athens
A Plea for the Christians
Chapter XII

Only God creates ex nihilo

For even a human artist, when he gets material from some one, makes of it what he pleases. But the power of God is manifested in this, that out of things that are not He makes whatever He pleases; just as the bestowal of life and motion is the prerogative of no other than God alone. For even man makes indeed an image, but reason and breath, or feeling, he cannot give to what he has made. But God has this property in excess of what man can do, in that He makes a work, endowed with reason, life, sensation. As, therefore, in all these respects God is more powerful than man, so also in this; that out of things that are not He creates and has created things that are, and whatever He pleases, as He pleases.

Theophilus of Antioch
To Autolycus, Book II
Chapter IV

Christ the perfect Intelligence of God. God in God.

With regard to Christ, the law and the prophets and the evangelists have proclaimed that He was born of a virgin, that He suffered upon a beam of wood, and that He appeared from the dead; that He also ascended to the heavens, and was glorified by the Father, and is the Eternal King; that He is the perfect Intelligence, the Word of God, who was begotten before the light; that He was the Founder of the universe, along with it (light), and the Maker of man; that He is All in all: Patriarch among the patriarchs; Law in the laws; Chief Priest among priests; Ruler among kings; the Prophet among prophets; the Angel among angels; the Man among men; Son in the Father; God in God; King to all eternity. For it is He who sailed [in the ark] along with Noah, and who guided Abraham; who was bound along with Isaac, and was a Wanderer with Jacob; the Shepherd of those who are saved, and the Bridegroom of the Church; the Chief also of the cherubim, the Prince of the angelic powers; God of God; Son of the Father; Jesus Christ; King for ever and ever. Amen.

Irenaeus of Lyons
Lost Writings
Fragment LIII