I know I’m a day late, but here are a couple great quotes from Irenaeus (ca. 130-200). First, from a fragment recorded by Eusebius:
These4798 opinions, Florinus, that I may speak in mild terms, are not of sound doctrine; these opinions are not consonant to the Church, and involve their votaries in the utmost impiety; these opinions, even the heretics beyond the Church’s pale have never ventured to broach; these opinions, those presbyters who preceded us, and who were conversant with the apostles, did not hand down to thee. For, while I was yet a boy, I saw thee in Lower Asia with Polycarp, distinguishing thyself in the royal court,4799 and endeavouring to gain his approbation. For I have a more vivid recollection of what occurred at that time than of recent events (inasmuch as the experiences of childhood, keeping pace with the growth of the soul, become incorporated with it); so that I can even describe the place where the blessed Polycarp used to sit and discourse— his going out, too, and his coming in—his general mode of life and personal appearance, together with the discourses which he delivered to the people; also how he would speak of his familiar intercourse with John, and with the rest of those who had seen the Lord; and how he would call their words to remembrance. Whatsoever things he had heard from them respecting the Lord, both with regard to His miracles and His teaching, Polycarp having thus received [information] from the eye-witnesses of the Word of life, would recount them all in harmony with the Scriptures. These things, through, God’s mercy which was upon me, I then listened to attentively, and treasured them up not on paper, but in my heart; and I am continually, by God’s grace, revolving these things accurately in my mind.
[4798 This interesting extract we also owe to Eusebius, who (ut sup.) took it from the work De Ogdoade, written after this former friend of Irenæus had lapsed to Valentinianism. Florinus had previously held that God was the author of evil, which sentiment Irenæus opposed in a treatise, now lost, called περὶ μοναρχίας.]
[4799 Comp. p. 32, this volume, and Phil. iv. 22.]
The second from the excellent Treasury of Daily Prayer for yesterday:
We have learned from none others the plan of our salvation, than from those through whom the Gospel has come down to us, which they did at one time proclaim in public, and, at a later period, by the will of God, handed down to us in the Scriptures, to be the ground and pillar of our faith…. But they are altogether deceived who imagine that they may learn from the scriptural text adduced by heretics, that [doctrine] which their words plausibly teach. For error is plausible and bears a resemblance to the truth but requires to be disguised; while truth is without disguise and, therefore, has been entrusted to children (TDP 472; find it all here and here).