St. Irenæus is a bedrock commentator concerning Daniel and Revelation (especially in Book 5).
Born to Christian parents in Smyrna, Asia Minor, where as a boy he heard the preaching of St. Polycarp ... this same Polycarp, was a disciple of
St. John the Apostle.
St. Irenæus also acquired (or had access to) five books written by St. Papias Bishop of Hierapolis in Asia Minor, who was also a hearer of John the Apostle. Eusebius tells us that Papias was also a contemporary of John the Presbyter who was also from Asia Minor and a disciple of John the Apostle.
John's "Revelation" was seen by the Apostle near the end of Domitian's reign (the last year of his reign being 96 AD).
Given St. Irenæus' connection to the episcopate succeeding from St. John the Apostle in Asia Minor and that
St. Irenæus was reared geographically in Smyrna to Christian parents, we place high prority on this Church Father's understanding concerning Revelation. We painstakingly went through all five books of "Against Heresies" to find all relevent commentary pertaining to "the spirit of prophecy".
From "Against Heresies (Against the Knowledge Falsely So Called)"
BOOK II (2)
Chapter XXXI (31) - Recapitulation and Application of the Foregoing Arguments.
3. Since, therefore, there exist among them error and misleading influences, and magical illusions are impiously wrought in the sight of men; but in the Church, sympathy, and compassion, and stedfastness, and truth, for the aid and encouragement of mankind, are not only displayed without fee or reward, but we ourselves lay out for the benefit of others our own means; and inasmuch as those who are cured very frequently do not possess the things which they require, they receive them from us;-[since such is the case, ] these men are in this way undoubtedly proved to be utter aliens from the divine nature, the beneficence of God, and all spiritual excellence. But they are altogether full of deceit of every kind, apostate inspiration, demoniacal working, and the phantasms of idolatry, and are in reality the predecessors of that dragon who, by means of a deception of the same kind, will with his tail cause a third part of the stars to fall from their place, and will cast them down to the earth. It behoves us to flee from them as we would from him; and the greater the display with which they are said to perform [their marvels], the more carefully should we watch them, as having been endowed with a greater spirit of wickedness. If any one will consider the prophecy referred to, and the daily practices of these men, he will find that their manner of acting is one and the same with the demons.But they are altogether full of deceit of every kind, apostate inspiration, demoniacal working, and the phantasms of idolatry, and are in reality the predecessors of that dragon who, by means of a deception of the same kind, will with his tail cause a third part of the stars to fall from their place, and will cast them down to the earth. It behoves us to flee from them as we would from him; and the greater the display with which they are said to perform [their marvels], the more carefully should we watch them, as having been endowed with a greater spirit of wickedness. If any one will consider the prophecy referred to, and the daily practices of these men, he will find that their manner of acting is one and the same with the demons.
BOOK III (3)
Chapter VI (6) - The Holy Ghost, Throughout the Old Testament Scriptures, Made Mention of No Other God or Lord, Save Him Who is the True God.
5. And the Apostle Paul also, saying, "For though ye have served them which are no gods; ye now know God, or rather, are known of God," has made a separation between those that were not [gods] and Him who is God. And again, speaking of Antichrist, he says, "who opposeth and exalteth himself above all that is called God, or that is worshipped." He points out here those who are called gods, by such as know not God, that is, idols. For the Father of all is called God, and is so; and Antichrist shall be lifted up, not above Him, but above those which are indeed called gods, but are not. And Paul himself says that this is true: "We know that an idol is nothing, and that there is none other God but one. For though there be that are called gods, whether in heaven or in earth; yet to us there is but one God, the Father, of whom are all things, and we through Him; and one Lord Jesus Christ, by whom are all things, and we by Him." For he has made a distinction, and separated those which are indeed called gods, but which are none, from the one God the Father, from whom are all things, and, he has confessed in the most decided manner in his own person, one Lord Jesus Christ. But in this [clause], "whether in heaven or in earth," he does not speak of the formers of the world, as these [teachers] expound it; but his meaning is similar to that of Moses, when it is said, "Thou shalt not make to thyself any image for God, of whatsoever things are in heaven above, whatsoever in the earth beneath, and whatsoever in the waters under the earth." And he does thus explain what are meant by the things in heaven: "Lest when," he says, "looking towards heaven, and observing the sun, and the moon, and the stars, and all the ornament of heaven, falling into error, thou shouldest adore and serve them." And Moses himself, being a man of God, was indeed given as a god before Pharaoh; but he is not properly termed Lord, nor is called God by the prophets, but is spoken of by the Spirit as "Moses, the faithful minister and servant of God," which also he was.
Chapter VII (7) - Reply to an Objection Founded on the Words of St. Paul (2 Corinthians 4:5). St. Paul Occasionally Uses Words Not in Their Grammatical, Sequence.
2. From many other instances also, we may discover that the apostle frequently uses a transposed order in his sentences, due to the rapidity of his discourses, and the impetus of the Spirit which is in him. An example occurs in the [Epistle] to the Galatians, where he expresses himself as follows: "Wherefore then the law of works? It was added, until the seed should come to whom the promise was made; [and it was] ordained by angels in the hand of a Mediator." For the order of the words runs thus: "Wherefore then the law of works? Ordained by angels in the hand of a Mediator, it was added until the seed should come to whom the promise was made,"-man thus asking the question, and the Spirit making answer. And again, in the Second to the Thessalonians, speaking of Antichrist, he says, "And then shall that wicked be revealed, whom the Lord Jesus Christ shall slay with the Spirit of His mouth, and shall destroy him with the presence of his coming; [even him] whose coming is after the working of Satan, with all power, and signs, and lying wonders." Now in these [sentences] the order of the words is this: "And then shall be revealed that wicked, whose coming is after the working of Satan, with all power, and signs, and lying wonders, whom the Lord Jesus shall slay with the Spirit of His mouth, and shall destroy with the presence of His coming." For he does not mean that the coming of the Lord is after the working of Satan; but the coming of the wicked one, whom we also call Antichrist. If, then, one does not attend to the [proper] reading [of the passage], and if he do not exhibit the intervals of breathing as they occur, there shall be not only incongruities, but also, when reading, he will utter blasphemy, as if the advent of the Lord could take place according to the working of Satan. So therefore, in such passages, the hyperbaton must be exhibited by the reading, and the apostle's meaning following on, preserved; and thus we do not read in that passage, "the god of this world," but, "God," whom we do truly call God; and we hear [it declared of] the unbelieving and the blinded of this world, that they shall not inherit the world of life which is to come.
Chapter XII (12) - Doctrine of the Rest of the Apostles.
5. And we are in this witnesses of these words; as also is the Holy Ghost, whom God hath given to them that believe in Him." "And daily," it is said, "in the temple, and from house to house, they ceased not to teach and preach Christ Jesus," the Son of God. For this was the knowledge of salvation, which renders those who acknowledge His Son's advent perfect towards God. (Irenaeus quotes here from "The Shepherd of Hermas" , vision 4, 2:4-2:5).
Chapter XXIII (23) - Arguments in Opposition to Tatian, Showing that It Was Consonant to Divine Justice and Mercy that the First Adam Should First Partake in that Salvation Offered to All by Christ.
7. For this end did He put enmity between the serpent and the woman and her seed, they keeping it up mutually: He, the sole of whose foot should be bitten, having power also to tread upon the enemy's head; but the other biting, killing, and impeding the steps of man, until the seed did come appointed to tread down his head,-which was born of Mary, of whom the prophet speaks: "Thou shalt tread upon the asp and the basilisk; thou shalt trample down the lion and the dragon; " -indicating that sin, which was set up and spread out against man, and which rendered him subject to death, should be deprived of its power, along with death, which rules [over men]; and that the lion, that is, antichrist, rampant against mankind in the latter days, should be trampled down by Him; and that He should bind "the dragon, that old serpent" and subject him to the power of man, who had been conquered so that all his might should be trodden down. Now Adam had been conquered, all life having been taken away from him: wherefore, when the foe was conquered in his turn, Adam received new life; and the last enemy, death, is destroyed, which at the first had taken possession of man. Therefore, when man has been liberated, "what is written shall come to pass, Death is swallowed up in victory. O death sting? " This could not be said with justice, if that man, over whom death did first obtain dominion, were not set free. For his salvation is death's destruction. When therefore the Lord vivifies man, that is, Adam, death is at the same time destroyed.
BOOK IV (4)
Chapter XVI (16) - Perfect Righteousness Was Conferred Neither by Circumcision Nor by Any Other Legal Ceremonies. The Decalogue, However, Was Not Cancelled by Christ, But is Always in Force: Men Were Never Released from Its Commandments.
2. And that man was not justified by these things, but that they were given as a sign to the people, this fact shows,-that Abraham himself, without circumcision and without observance of Sabbaths, "believed God, and it was imputed unto him for righteousness; and he was called the friend of God." Then, again, Lot, without circumcision, was brought out from Sodom, receiving salvation from God. So also did Noah, pleasing God, although he was uncircumcised, receive the dimensions [of the ark], of the world of the second race [of men]. Enoch, too, pleasing God, without circumcision, discharged the office of God's legate to the angels although he was a man, and was translated, and is preserved until now as a witness of the just judgement of God, because the angels when they had transgressed fell to the earth for judgment, but the man who pleased [God] was translated for salvation (see "The Shepherd of Hermas", vision 4, 2:5). Moreover, all the rest of the multitude of those righteous men who lived before Abraham, and of those patriarchs who preceded Moses, were justified independently of the things above mentioned, and without the law of Moses. As also Moses himself says to the people in Deuteronomy: "The Lord thy God formed a covenant in Horeb. The Lord formed not this covenant with your fathers, but for you" (Deuteronomy 5:2).
Chapter XI (21) - Abraham's faith was identical with ours; this faith was prefigured by the words and actions of the old patriarchs.
3. For to this end was the Lord born, the type of whose birth he set forth beforehand, of whom also John says in the Apocalypse: He went forth conquering, that He should conquer, Revelation 6:2.
Chapter XX (22) - That One God Formed All Things in the World, by Means of the Word and the Holy Spirit: and that Although He is to Us in This Life Invisible and Incomprehensible, Nevertheless He is Not Unknown; Inasmuch as His Works Do Declare Him, and His Word Has Shown that in Many Modes He May Be Seen and Known.
6. Men therefore shall see God, that they may live, being made immortal by that sight, and attaining even unto God; which, as I have already said, was declared figuratively by the prophets, that God should be seen by men who bear His Spirit [in them], and do always wait patiently for His coming. As also Moses says in Deuteronomy, "We shall see in that day that God will talk to man, and he shall live." For certain of these men used to see the prophetic Spirit and His active influences poured forth for all kinds of gifts; others, again, [beheld] the advent of the Lord, and that dispensation which obtained from the beginning, by which He accomplished the will of the Father with regard to things both celestial and terrestrial; and others [beheld] paternal glories adapted to the times, and to those who saw and who heard them then, and to all who were subsequently to hear them.
Chapter XXII (22) - Christ Did Not Come for the Sake of the Men of One Age Only, But for All Who, Living Righteously and Piously, Had Believed Upon Him; And for Those, Too, Who Shall Believe.
2.For it was not merely for those who believed on Him in the time of Tiberius Caesar that Christ came, nor did the Father exercise His providence for the men only who are now alive, but for all men altogether, who from the beginning, according to their capacity, in their generation have both feared and loved God, and practised justice and piety towards their neighbours, and have earnestly desired to see Christ, and to hear His voice. Wherefore He shall, at His second coming, first rouse from their sleep all persons of this description, and shall raise them up, as well as the rest who shall be judged, and give them a place in His kingdom. For it is truly "one God who" directed the patriarchs towards His dispensations, and "has justified the circumcision by faith, and the uncircumcision through faith." For as in the first we were prefigured, so, on the other hand, are they represented in us, that is, in the Church, and receive the recompense for those things which they accomplished.