Isaias 29:15

For many think such things to be pleasures only which are against nature, such as these sins of theirs. And those who are better than they, know them to be sins, but are overcome by pleasures, and darkness is the veil of their vicious practices. For he violates his marriage adulterously who uses it in a meretricious way, and hears not the voice of the Instructor, crying, “The man who ascends his bed, who says in his soul, Who seeth me? darkness is around me, and the walls are my covering, and no one sees my sins. Why do I fear lest the Highest will remember?” Most wretched is such a man, dreading men’s eyes alone, and thinking that he will escape the observation of God. …

“Why call ye me Lord, Lord,” He says, “and do not the things which I say?” For “the people that loveth with their lips, but have their heart far away from the Lord,” is another people, and trust in another, and have willingly sold themselves to another; but those who perform the commandments of the Lord, in every action “testify,” by doing what He wishes, and consistently naming the Lord’s name; and “testifying” by deed to Him in whom they trust, that they are those “who have crucified the flesh, with the affections and lusts.” “If we live in the Spirit, let us also walk in the Spirit.” “He that soweth to his flesh, shall of the flesh reap corruption; but he that soweth to the Spirit, shall of the Spirit reap life everlasting.”

In Isaiah: “And all these words shall be unto you as the words of a book that is sealed, which, if you shall give to a man that knoweth letters to read, he shall say, I cannot read, for it is sealed. But in that day the deaf shall hear the words of the book, and they who are in darkness and in a cloud; the eyes of the blind shall see.” Also in Jeremiah: “In the last of the days ye shall know those things.” In Daniel, moreover: “Secure the words, and seal the book until the time of consummation, until many learn, and knowledge is fulfilled, because when there shall be a dispersion they shall know all these things.” Likewise in the first Epistle of Paul to the Corinthians: “Brethren, I would not that ye should be ignorant, that all our fathers were under the cloud.” Also in the second Epistle to the Corinthians: “Their minds are blinded even unto this day, by this same veil which is taken …

In the first Epistle of Paul to the Corinthians: “We see now through the glass in an enigma, but then with face to face. Now I know partly; but then I shall know even as also I am known.” Also in Solomon, in Wisdom: “And in simplicity of heart seek Him.” Also in the same: “He who walketh with simplicity, walketh trustfully.” Also in the same: “Seek not things higher than thyself, and look not into things stronger than thyself.” Also in Solomon: “Be not excessively righteous, and do not reason more than is required.” Also in Isaiah: “Woe unto them who are convicted in themselves.” Also in the Maccabees: “Daniel in his simplicity was delivered from the mouth of the lions.” Also in the Epistle of Paul to the Romans: “Oh the depth of the riches of the wisdom and knowledge of God! How incomprehensible are His judgments, and how unsearchable are His ways! For who has known the mind of the Lord …

And, after this, wishing to refute completely from the words of the prophets all these traditions of the elders among the Jews, He brought before them a saying, from Isaiah, which in the exact words is as follows: “And the Lord said, This people draws nigh to Me with their mouth,” etc.; and, as we said before, Matthew has not written out the prophetical saying in the very words. And, if it be necessary because of its use in the Gospel to interpret it according to our ability, we will take in addition the preceding passage which is, in my judgment, noted with advantage by us for the exposition of that passage in the Gospel which was taken from the prophet. …

10. It must now be pointed out that the phrase “through whom” is admitted by Scripture in the case of the Father and of the Son and of the Holy Ghost alike. It would indeed be tedious to bring forward evidence of this in the case of the Son, not only because it is perfectly well known, but because this very point is made by our opponents. We now show that “through whom” is used also in the case of the Father. “God is faithful,” it is said, “by whom ( δι᾽ οὖ ) ye were called unto the fellowship of his Son,” and “Paul an apostle of Jesus Christ by ( διά ) the will of God;” and again, “Wherefore thou art no more a servant, but a son; and if a son, then an heir through God.” And “like as Christ was raised up from the dead by ( διά ) the glory of God the Father.” Isaiah, moreover, says, “Woe unto them that make deep counsel and not through the Lord;” and many proofs of the use of this phrase …