1 Corinthians 8:6

And [know ye, moreover], that He who was born of a woman was the Son of God, and He that was crucified was “the first-born of every creature,” and God the Word, who also created all things. For says the apostle, “There is one God, the Father, of whom are all things; and one Lord Jesus Christ, by whom are all things.” And again, “For there is one God, and one Mediator between God and man, the man Christ Jesus;” and, “By Him were all things created that are in heaven, and on earth, visible and invisible; and He is before all things, and by Him all things consist.”

The Evangelists, too, when they declared that the one Father was “the only true God,” did not omit what concerned our Lord, but wrote: “In the beginning was the Word, and the Word was with God, and the Word was God. The same was in the beginning with God. All things were made by Him, and without Him was not anything made that was made.” And concerning the incarnation: “The Word,” says [the Scripture], “became flesh, and dwelt among us.” And again: “The book of the generation of Jesus Christ, the son of David, the son of Abraham.” And those very apostles, who said “that there is one God,” said also that “there is one Mediator between God and men.” Nor were they ashamed of the incarnation and the passion. For what says [one]? “The man Christ Jesus, who gave Himself” for the life and salvation of the world.

Being mindful of your love and of your zeal in Christ, which ye have manifested towards us, we thought it fitting to write to you, who display such a godly and spiritual love to the brethren, to put you in remembrance of your Christian course, “that ye all speak the same thing, being of one mind, thinking the same thing, and walking by the same rule of faith,” as Paul admonished you. For if there is one God of the universe, the Father of Christ, “of whom are all things;” and one Lord Jesus Christ, our [Lord], “by whom are all things;” and also one Holy Spirit, who wrought in Moses, and in the prophets and apostles; and also one baptism, which is administered that we should have fellowship with the death of the Lord; and also one elect Church; there ought likewise to be but one faith in respect to Christ. …

There is then one God and Father, and not two or three; One who is; and there is no other besides Him, the only true [God]. For “the Lord thy God,” saith [the Scripture], “is one Lord.” And again, “Hath not one God created us? Have we not all one Father? And there is also one Son, God the Word. For “the only-begotten Son,” saith [the Scripture], “who is in the bosom of the Father.” And again, “One Lord Jesus Christ.” And in another place, “What is His name, or what His Son’s name, that we may know?” And there is also one Paraclete. For “there is also,” saith [the Scripture], “one Spirit,” since “we have been called in one hope of our calling.” And again, “We have drunk of one Spirit,” with what follows. …

We are not, then, to abstain wholly from various kinds of food, but only are not to be taken up about them. We are to partake of what is set before us, as becomes a Christian, out of respect to him who has invited us, by a harmless and moderate participation in the social meeting; regarding the sumptuousness of what is put on the table as a matter of indifference, despising the dainties, as after a little destined to perish. “Let him who eateth, not despise him who eateth not; and let him who eateth not, not judge him who eateth.” And a little way on he explains the reason of the command, when he says, “He that eateth, eateth to the Lord, and giveth God thanks; and he that eateth not, to the Lord he eateth not, and giveth God thanks.” So that the right food is thanksgiving. And he who gives thanks does not occupy his time in pleasures. …

Now, when Marcion wholly prohibits all carnal intercourse to the faithful (for we will say nothing about his catechumens), and when he prescribes repudiation of all engagements before marriage, whose teaching does he follow, that of Moses or of Christ? Even Christ, however, when He here commands “the wife not to depart from her husband, or if she depart, to remain unmarried or be reconciled to her husband,” both permitted divorce, which indeed He never absolutely prohibited, and confirmed (the sanctity) of marriage, by first forbidding its dissolution; and, if separation had taken place, by wishing the nuptial bond to be resumed by reconciliation. …

40 God all things made;” to whom he plainly owns

But Celsus perhaps has misunderstood certain of those whom he has termed “worms,” when they affirm that “God exists, and that we are next to Him.” And he acts like those who would find fault with an entire sect of philosophers, on account of certain words uttered by some rash youth who, after a three days’ attendance upon the lectures of a philosopher, should exalt himself above other people as inferior to himself, and devoid of philosophy. For we know that there are many creatures more honourable than man; and we have read that “God standeth in the congregation of gods,” but of gods who are not worshipped by the nations, “for all the gods of the nations are idols.” We have read also, that “God, standing in the congregation of the gods, judgeth among the gods.” We know, moreover, that “though there be that are called gods, whether in heaven or in earth (as there be gods many and lords ma …

3. In this way, then, they choose to set forth these things, and they make use only of one class of passages; just in the same one-sided manner that Theodotus employed when he sought to prove that Christ was a mere man. But neither has the one party nor the other understood the matter rightly, as the Scriptures themselves confute their senselessness, and attest the truth. See, brethren, what a rash and audacious dogma they have introduced, when they say without shame, the Father is Himself Christ, Himself the Son, Himself was born, Himself suffered, Himself raised Himself. But it is not so. The Scriptures speak what is right; but Noetus is of a different mind from them. Yet, though Noetus does not understand the truth, the Scriptures are not at once to be repudiated. …

But some treat the Holy Trinity in an awful manner, when they confidently assert that there are not three persons, and introduce (the idea of) a person devoid of subsistence. Wherefore we clear ourselves of Sabellius, who says that the Father and the Son are the same. For he holds that the Father is He who speaks, and that the Son is the Word that abides in the Father, and becomes manifest at the time of the creation, and thereafter reverts to God on the fulfilling of all things. The same affirmation he makes also of the Spirit. …

Now the person in each declares the independent being and subsistence. But divinity is the property of the Father; and whenever the divinity of these three is spoken of as one, testimony is borne that the property of the Father belongs also to the Son and the Spirit: wherefore, if the divinity may be spoken of as one in three persons, the trinity is established, and the unity is not dissevered; and the oneness which is naturally the Father’s is also acknowledged to be the Son’s and the Spirit’s. If one, however, speaks of one person as he may speak of one divinity, it cannot be that the two in the one are as one. …

28. For it is true, O Lord, that Thou hast made heaven and earth; it is also true, that the Beginning is Thy Wisdom, in Which Thou hast made all things. It is likewise true, that this visible world hath its own great parts, the heaven and the earth, which in a short compass comprehends all made and created natures. It is also true, that everything mutable sets before our minds a certain want of form, whereof it taketh a form, or is changed and turned. It is true, that that is subject to no times which so cleaveth to the changeless form as that, though it be mutable, it is not changed. It is true, that the formlessness, which is almost nothing, cannot have changes, of times. …