"Lest some of the things necessary to thy journey be wanting; as the oil of piety was deficient in the five foolish virgins (Mat_25:1-46) mentioned in the Gospel, when they, on account of their having extinguished their lamps of divine knowledge, were shut out of the bride-chamber."Constitutions of the Apostles
Bk. 8 pt. 1 Ch. XIII, Vol. 7

"The Lord pities, instructs, exhorts, admonishes, saves, shields, and of His bounty promises us the kingdom of heaven as a reward for learning; and the only advantage He reaps is, that we are saved. For wickedness feeds on men’s destruction; but truth, like the bee, harming nothing, delights only in the salvation of men."Clement
Exhortation Ch. I, Vol. 2

"For who that is rightly taught and begotten by the loving Word, would not seek to learn accurately the things which have been clearly shown by the Word to His disciples, to whom the Word being manifested has revealed them, speaking plainly [to them], not understood indeed by the unbelieving, but conversing with the disciples, who, being esteemed faithful by Him, acquired a knowledge of the mysteries of the Father?"Mathetes (Disciple of Apostle Paul)
Epistle to Diognetus Ch. XI, Vol. 1

"Then the fear of the law is chanted, and the grace of the prophets is known, and the faith of the gospels is established, and the tradition of the Apostles is preserved, and the grace of the Church exults; which grace if you grieve not, you shall know those things which the Word teaches, by whom He wills, and when He pleases. For whatever things we are moved to utter by the will of the Word commanding us, we communicate to you with pains, and from a love of the things that have been revealed to us."Mathetes
Epistle to Diognetus Ch. XI, Vol. 1

"Hebrew figure of speech, it is said of God in the eighteenth Psalm, that “He made darkness His secret place,” (cf. Psa_18:11) to signify that those notions which should be worthily entertained of God are invisible and unknowable, because God conceals Himself in darkness, as it were, from those who cannot endure the splendor’s of His knowledge, or are incapable of looking at them, partly owing to the pollution of their understanding, which is clothed with the body of mortal lowliness, and partly owing to its feebler power of comprehending God. And in order that it may appear that the knowledge of God has rarely been vouch-safe to men, and has been found in very few individuals, Moses is related to have entered into the darkness where God was. (cf. Exo_20:21)"Origen
Against Celsus Bk. 6 Ch. XVII, Vol. 4

"But on the Scriptures being opened up, and declaring the truth to those who have ears, they proclaim the very suffering endured by the flesh, which the Lord assumed, to be “the power and wisdom of God.” And finally, the parabolic style of Scripture being of the greatest antiquity, as we have shown, abounded most, as was to be expected, in the prophets, in order that the Holy Spirit might show that the philosophers among the Greeks, and the wise men among the Barbarians besides, were ignorant of the future coming of the Lord, and of the mystic teaching that was to be delivered by Him."Clement
Stromata Bk. 6 Ch. XV, Vol. 2

"But from the fact that truth appertains not to all, it is veiled in manifold ways, causing the light to arise only on those who are initiated into knowledge, who seek the truth through love. The proverb, according to the Barbarian philosophy, is called a mode of prophecy, and the parable is so called, and the enigma in addition."Clement
Stromata Bk. 6 Ch. XV, Vol. 2

"So that, on the one hand, then, are the mysteries which were hid till the time of the apostles, and were delivered by them as they received from the Lord, and, concealed in the Old Testament, were manifested to the saints."Clement
Stromata Bk. 5 Ch. X, Vol. 2

"What, then, does it say in reference to the good land, flowing with milk and honey? Blessed be our Lord, brethren, who has put into our hearts wisdom, and the understanding of His secrets. For the prophet says, “Who shall understand the Lord’s parable but the wise and understanding, and he that loves his Lord?” It is but for few to comprehend these things. For it is not in the way of envy that the Lord announced in a Gospel, “My mystery is to me, and to the sons of my house;”"Clement
Stromata Bk. 5 Ch. X, Vol. 2

"David sings: “For, lo, Thou hast loved truth; the obscure and hidden things of wisdom hast Thou showed me.” (Psa_51:6, LXX) “Day utters speech today” (Psa_19:2, Psa_19:3) (what is clearly written), “and night to night proclaims knowledge” (which is hidden in a mystic veil); “and there are no words or utterances whose voices shall not be heard” by God, who said, “Shall one do what is secret, and I shall not see him?”"Clement
Stromata Bk. 5 Ch. X, Vol. 2

“The fullness of Christ, according to the revelation of the mystery sealed in the ages of eternity, but now manifested by the prophetic Scriptures, according to the command of the eternal God, made known to all the nations, in order to the obedience of faith,”Clement
Stromata Bk. 5 Ch. X, Vol. 2

"But well knowing that the Savior teaches nothing in a merely human way, but teaches all things to His own with divine and mystic wisdom, we must not listen to His utterances carnally; but with due investigation and intelligence must search out and learn the meaning hidden in them."Clement
Rich Man Ch. V, Vol. 2

"Ye are initiated into the mysteries of the Gospel with Paul, the holy, the martyred, inasmuch as he was “a chosen vessel;”"Ignatius (Disciple of Apostle John)
Epistle to the Ephesians Ch. XII, Vol. 1

"Again: “Abraham, when he came to the place which God told him of on the third day, looking up, saw the place afar off.” (Gen_22:3, Gen_22:4) For the first day is that which is constituted by the sight of good things; and the second is the soul’s best desire; on the third, the mind perceives spiritual things, the eyes of the understanding being opened by the Teacher who rose on the third day. The three days may be the mystery of the seal, in which God is really believed."Clement
Stromata Bk. 5 Ch. XI, Vol. 2

"If, therefore, in the present time also, God, knowing the number of those who will not believe, since He foreknows all things, has given them over to unbelief, and turned away His face from men of this stamp, leaving them in the darkness which they have themselves chosen for themselves, what is there wonderful if He did also at that time give over to their unbelief, Pharaoh, who never would have believed, along with those who were with him? As the Word spoke to Moses from the bush: “And I am sure that the king of Egypt will not let you go, unless by a mighty hand.” (Exo_3:19) And for the reason that the Lord spoke in parables, and brought blindness upon Israel, that seeing they might not see, since He knew the [spirit of] unbelief in them, for the same reason did He harden Pharaoh’s heart; in order that, while seeing that it was the finger of God which led forth the people, he might not believe, but be precipitated into a sea of unbelief, resting in the notion that the exit of these [Israelites] was accomplished by magical power, and that it was not by the operation of God that the Red Sea afforded a passage to the people, but that this occurred by merely natural causes."Irenaeus
Against Heresies Bk. 4 Ch. XXIX, Vol. 1

"For every prophecy, before its fulfilment, is to men [full of] enigmas and ambiguities. But when the time has arrived, and the prediction has come to pass, then the prophecies have a clear and certain exposition. And for this reason, indeed, when at this present time the law is read to the Jews, it is like a fable; for they do not possess the explanation of all things pertaining to the advent of the Son of God, which took place in human nature; but when it is read by the Christians, it is a treasure, hid indeed in a field, but brought to light by the cross of Christ, and explained, both enriching the understanding of men, and showing forth the wisdom of God and declaring His dispensations with regard to man, and forming the kingdom of Christ beforehand, and preaching by anticipation the inheritance of the holy Jerusalem, and proclaiming beforehand that the man who loves God shall arrive at such excellency as even to see God, and hear His word, and from the hearing of His discourse be glorified to such an extent, that others cannot behold the glory of his countenance, as was said by Daniel: “Those who do understand, shall shine as the brightness of the firmament, and many of the righteous as the stars for ever and ever.” (Dan_12:3)"Iranaeus
Against Heresies Bk. 4 Ch. XXVI, Vol. 2

"Now a “spiritual” interpretation is of this nature: when one is able to point out what are the heavenly things of which these serve as the patterns and shadow, who are Jews “according to the flesh,” and of what things future the law contains a shadow, and any other expressions of this kind that may be found in holy Scripture; or when it is a subject of inquiry, what is that wisdom hidden in a mystery which “God ordained before the world for our glory, which none of the princes of this world knew;” (Cf. 1Co_2:7) or the meaning of the apostle’s language, when, employing certain illustrations from Exodus or Numbers, he says: “These things happened to them in a figure, and they are written on our account, on whom the ends of the ages have come.” (1Co_10:11)"Origen
De Principiis Bk. 4 Ch. I, Vol. 4

"If, therefore, in the present time also, God, knowing the number of those who will not believe, since He foreknows all things, has given them over to unbelief, and turned away His face from men of this stamp, leaving them in the darkness which they have themselves chosen for themselves, what is there wonderful if He did also at that time give over to their unbelief, Pharaoh, who never would have believed, along with those who were with him? As the Word spoke to Moses from the bush: “And I am sure that the king of Egypt will not let you go, unless by a mighty hand.” (Exo_3:19) And for the reason that the Lord spoke in parables, and brought blindness upon Israel, that seeing they might not see, since He knew the [spirit of] unbelief in them."Irenaeus
Against Heresies Bk. 4 Ch. XXIX, Vol. 1

"For he who has received the gift of healing is declared by revelation from God, the grace which is in him being manifest to all."Constitution of the Apostles
Bk. 8 pt. 2 Ch. XXVI, Vol. 7

"And then a teacher, to train and guide the soul to all requisite knowledge when it is made able to admit the revelation of the Word. Eagerly desiring, then, to perfect us by a gradation conducive to salvation, suited for efficacious discipline, a beautiful arrangement is observed by the all-benignant Word, who first exhorts, then trains, and finally teaches."Clement
Instructor Bk. I Ch. I, Vol. 2

"Furnishing understanding, revealing mysteries, announcing times, rejoicing over the faithful."Mathetes (Disciple of Apostle Paul)
Epistle to Diognetus Ch. XI, Vol. 1

"And again, that the prophet may show the depth of the doctrines which relate to God, and which is unattainable by those who do not possess the “Spirit which searcheth all things, even the deep things of God,”"Origen
Against Celsus Bk. 6 Ch. XVII, Vol. 4

"For many reasons, then, the Scriptures hide the sense. First that we may become inquisitive, and be ever on the watch for the discovery of the words of salvation. Then it was not suitable for all to understand, so that they might not receive harm in consequence of taking in another sense the things declared for salvation by the Holy Spirit. Wherefore the holy mysteries of the prophecies are veiled in the parables - preserved for chosen men, selected to knowledge in consequence of their faith; for the style of the Scriptures is parabolic."Clement
Stromata Bk. 6 Ch. XV, Vol. 2

"Now all the prophets who foretold the Lord’s coming, and the holy mysteries accompanying it, were persecuted and killed. As also the Lord Himself, in explaining the Scriptures to them, and His disciples who preached the word like Him, and subsequently to His life, used parables. Whence also Peter, in his Preaching, speaking of the apostles, says: “But we, unrolling the books of the prophets which we possess, who name Jesus Christ, partly in parables, partly in enigmas"Clement
Stromata Bk. 6 Ch. XV, Vol. 7

"The Spirit prophesying that through the exposition of the Scriptures there would come afterwards the sacred knowledge, which at that period was still unwritten, because not yet known. For it was spoken from the beginning to those only who understand. Now that the Savior has taught the apostles, the unwritten rendering of the written [Scripture] has been handed down also to us, inscribed by the power of God on hearts new, according to the renovation of the book."Clement
Stromata Bk. 6 Ch. X, Vol. 2

"And he still more clearly reveals that knowledge belongs not to all, by adding: “Praying at the same time for you that God would open to us a door to speak the mystery of Christ, for which I am bound; that I may make it known as I ought to speak.” (Col_4:3, Col_4:4) For there were certainly, among the Hebrews, some things delivered unwritten."Clement
Stromata Bk. 5 Ch. X, Vol. 2

"For he who has not the knowledge of good is wicked: for there is one good, the Father; and to be ignorant of the Father is death, as to know Him is eternal life, through participation in the power of the incorrupt One. And to be incorruptible is to participate in divinity; but revolt from the knowledge of God brings corruption."Clement
Stromata Bk. 5 Ch. X, Vol. 2

"Wherefore instruction, which reveals hidden things, is called illumination, as it is the teacher only who uncovers the lid of the ark"Clement
Stromata Bk. 5 Ch. X, Vol. 2

"If, then, “the milk” is said by the apostle to belong to the babes, and “meat” to be the food of the full-grown, milk will be understood to be catechetical instruction - the first food, as it were, of the soul. And meat is the mystic contemplation; for this is the flesh and the blood of the Word, that is, the comprehension of the divine power and essence. “Taste and see that the Lord is Christ,” it is said. For so He imparts of Himself to those who partake of such food in a more spiritual manner; when now the soul nourishes itself, according to the truth-loving Plato. For the knowledge of the divine essence is the meat and drink of the divine Word."Clement
Stromata Bk. 5 Ch. X, Vol. 2

"For even those things which seem to have been simplified to the disciples by the Lord Himself are found to require not less, even more, attention than what is expressed enigmatically, from the surpassing superabundance of wisdom in them. And whereas the things which are thought to have been explained by Him to those within - those called by Him the children of the kingdom - require still more consideration than the things which seemed to have been expressed simply, and respecting which therefore no questions were asked by those who heard them, but which, pertaining to the entire design of salvation, and to be contemplated with admirable and super celestial depth of mind"Clement
Rich Man Ch. V, Vol. 2

"The priests indeed, and the ministers of the word, are good; but the High Priest is better, to whom the holy of holies has been committed, and who alone has been entrusted with the secrets of God."Ignatius (Disciple of Apostle John)
Epistle to the Philippians Ch. IX, Vol I

"For if a man is able to understand divine things, he will be able to also perform them; for to understand is, as it were, to follow in their track."Lactantius
Divine Institutes Bk. VII Ch. II, Vol. 7

"If anyone, therefore, reads the Scriptures with attention, he will find in them an account of Christ, and a foreshadowing of the new calling (vocationis). For Christ is the treasure which was hid in the field, (Mat_13:44) that is, in this world (for “the field is the world” [Mat_13:38]); but the treasure hid in the Scriptures is Christ, since He was pointed out by means of types and parables."Iranaeus
Against Heresies Bk. 4 Ch. XXVI, Vol. 1

"And if you come to the books written after the time of Jesus, you will find that those multitudes of believers who hear the parables are, as it were, “without,” and worthy only of exoteric doctrines, while the disciples learn in private the explanation of the parables. For, privately, to His own disciples did Jesus open up all things, esteeming above the multitudes those who desired to know His wisdom. And He promises to those who believe upon Him to send them wise men and scribes, saying, “Behold, I will send unto you wise men and scribes, and some of them they shall kill and crucify.” (cf. Mat_23:34)"Origen
Against Celsus Bk. 3 Ch. XLVI, Vol. 4

"Paul the apostle, he says, knew of this gate, partially opening it in a mystery, and stating “that he was caught up by an angel, and ascended as far as the second and third heaven into paradise itself; and that he beheld sights and heard unspeakable words which it would not be possible for man to declare.” (2Co_12:2) These are, he says, what are by all called the secret mysteries, “which (also we speak), not in words taught of human wisdom, but in those taught of the Spirit, comparing spiritual things with spiritual. But the natural man receiveth not the things of the Spirit of God, for they are foolishness unto him.” (1Co_2:13-14) And these are, he says, the ineffable mysteries of the Spirit, which we alone are acquainted with."Hippolytus
Refutation Bk. 5 Ch. III, Vol. 5

"And yet the mystery of the resurrection, not being understood, is made a subject of ridicule among unbelievers. In these circumstances, to speak of the Christian doctrine as a secret system, is altogether absurd. But that there should be certain doctrines, not made known to the multitude, which are (revealed) after the exoteric ones have been taught, is not a peculiarity of Christianity alone, but also of philosophic systems, in which certain truths are exoteric and others esoteric. Some of the hearers of Pythagoras were content with his ipse dixit; while others were taught in secret those doctrines which were not deemed fit to be communicated to profane and insufficiently prepared ears. Moreover, all the mysteries that are celebrated everywhere throughout Greece and barbarous countries, although held in secret, have no discredit thrown upon them, so that it is in vain that he endeavors to calumniate the secret doctrines of Christianity, seeing he does not correctly understand its nature."Origen
Against Celsus Bk. I Ch. VII, Vol. 4

"For might not I write to you things more full of mystery? But I fear to do so, lest I should inflict injury on you who are but babes [in Christ]. Pardon me in this respect, lest, as not being able to receive their weighty import, ye should be strangled by them."Ignatius (Disciple of Apostle John)
Epistle to the Trallians Ch. V, Vol. 1