32 If heresy, in its folly and wickedness, shall attempt to entice the simple-minded and uninstructed away from the true belief that these words were spoken in reference to God the Son, by feigning that they are an utterance of God the Father concerning Himself, it shall hear sentence passed upon the lie by the Apostle and Teacher of the Gentiles. He interprets all these prophecies as allusions to the passion of the Lord and to the times of Gospel faith, when he is reproving the unbelief of Israel, which will not recognise that the Lord has come in the flesh.
His words are:— For whosoever shall have called upon the name of the Lord shall be saved. How shall they call on Him in Whom they have not believed? But how shall they believe in Him of Whom they have not heard? And how shall they hear without a preacher? And how shall they preach, excerpt they have been sent? As it is written, How beautiful are the feet of them that proclaim peace, of them that proclaim good things. But all do not obey the Gospel. For Esaias says, Lord, who has believed our report?
So then faith comes by hearing and hearing through the word. But I say, Have they not heard? Yes verily, their sound went into all the earth, and their words unto the ends of the world. But I say, Did not Israel know? First Moses says, I will provoke you to jealousy against them that are no people, and against a foolish nation I will anger you. Moreover Esaias is bold, and says, I appeared unto them that seek Me not, I was found by them that asked not after Me. But to Israel what says He?
All day long I have stretched forth My hands to a people that hearken not</em>. Who are you that hast mounted up through the successive heavens, knowing not whether thou were in the body or out of the body, and canst explain more faithfully than he the words of the prophet? Who are you that hast heard, and may not tell, the ineffable mysteries of the secret things of heaven, and hast proclaimed with greater assurance the knowledge granted you by God for revelation? Who are you that hast been fore-ordained to a full share of the Lord's suffering on the Cross, and first has been caught up to Paradise and drawn nobler teaching from the Scriptures of God than this chosen vessel?
If there be such a man, has he been ignorant that these are the deeds and words of the true God, proclaimed to us by His own true and chosen Apostle that we may recognise in Him their Author?
Source: On the Trinity (New Advent)