Well, here is Irenaeus on Tradition AND Scripture side by side:
2.1. When, however, they are confuted from the Scriptures, they turn round and accuse these same Scriptures, as if they were not correct, nor of authority, and [assert] that they are ambiguous, and that the truth cannot be extracted from them by those who are ignorant of tradition. For [they allege] that the truth was not delivered by means of written documents, but vivâ voce: wherefore also Paul declared, "But we speak wisdom among those that are perfect, but not the wisdom of this world." And this wisdom each one of them alleges to be the fiction of his own inventing, forsooth;..
2.2. But, again, when we refer them to that tradition which originates from the apostles, [and] which is preserved by means of the succession of presbyters in the Churches, they object to tradition, saying that they themselves are wiser not merely than the presbyters, but even than the apostles, because they have discovered the unadulterated truth. For [they maintain] that the apostles intermingled the things of the law with the words of the Saviour; and that not the apostles alone, but even the Lord Himself, spoke as at one time from the Demiurge, at another from the intermediate place, and yet again from the Pleroma, but that they themselves, indubitably, unsulliedly, and purely, have knowledge of the hidden mystery: this is, indeed, to blaspheme their Creator after a most impudent manner! It comes to this, therefore, that these men do now consent neither to Scripture nor to tradition.
Irenaeus on Tradition - from Adversus Haereses
In this, we see the Tradition is placed next to existent Scripture in authority, so that it, TOO comes from the Apostles.
Let's see some of the other lines from that series:
It is within the power of all, therefore, in every Church, who may wish to see the truth, to contemplate clearly the tradition of the apostles manifested throughout the whole world; and we are in a position to reckon up those who were by the apostles instituted bishops in the Churches, and [to demonstrate] the succession of these men to our own times; those who neither taught nor knew of anything like what these [heretics] rave about.
Here we see that the Tradition, unlike the written Scripture, was manifested throughout the whole world.
Since therefore we have such proofs, it is not necessary to seek the truth among others which it is easy to obtain from the Church; since the apostles, like a rich man [depositing his money] in a bank, lodged in her hands most copiously all things pertaining to the truth: so that every man, whosoever will, can draw from her the water of life. For she is the entrance to life; all others are thieves and robbers. On this account are we bound to avoid them, but to make choice of the thing pertaining to the Church with the utmost diligence, and to lay hold of the tradition of the truth. For how stands the case? Suppose there arise a dispute relative to some important question among us, should we not have recourse to the most ancient Churches with which the apostles held constant intercourse, and learn from them what is certain and clear in regard to the present question? For how should it be if the apostles themselves had not left us writings? Would it not be necessary, [in that case,] to follow the course of the tradition which they handed down to those to whom they did commit the Churches?
And now we see that Scriptures from the Apostles did exist, but that their Tradition existed in marriage thereto.
To which course many nations of those barbarians who believe in Christ do assent, having salvation written in their hearts by the Spirit, without paper or ink, and, carefully preserving the ancient tradition, believing in one God, the Creator of heaven and earth, and all things therein, by means of Christ Jesus, the Son of God; who, because of His surpassing love towards His creation, condescended to be born of the virgin, He Himself uniting man through Himself to God, and having suffered under Pontius Pilate, and rising again, and having been received up in splendour, shall come in glory, the Saviour of those who are saved, and the Judge of those who are judged, and sending into eternal fire those who transform the truth, and despise His Father and His advent. Those who, in the absence of written documents, have believed this faith, are barbarians, so far as regards our language; but as regards doctrine, manner, and tenor of life, they are, because of faith, very wise indeed; and they do please God, ordering their conversation in all righteousness, chastity, and wisdom. If any one were to preach to these men the inventions of the heretics, speaking to them in their own language, they would at once stop their ears, and flee as far off as possible, not enduring even to listen to the blasphemous address. Thus, by means of that ancient tradition of the apostles, they do not suffer their mind to conceive anything of the [doctrines suggested by the] portentous language of these teachers, among whom neither Church nor doctrine has ever been established.
And finally we see that, without a written Scripture, the Gauls were capable of knowing the truth thanks to the Tradition, rebuffing the heresies of Marcion and clinging to Christ.
Scripture itself is tradition (with others in the era when it was developed noting where there other traditions present based on John 21 with the miracles of Christ and so many other things being based on the tradition itself ) and it is part of the greater category of Tradition (cf. 2 Thess. 2:15). For both Sacred Tradition and Sacred Scripture are a means of transmitting the deposit of faith, as they are bound closely together and communicate one with the other to give illumination to one another.
As others
have noted wisely (for brief excerpt):
Much as Protestants are at a loss in being logically consistent with Jude's extra-biblical sources from God or with the unwritten beliefs concerning Baptism or with Eucharistic oral traditions, they are equally at a loss about the Apostles' commands for all Christians in all churches for all generations to follow and preserve the written and oral traditions of the Apostles. Paul in 2 Thessalonians 2:15 says, "So then, brothers, stand firm and hold fast to the traditions that you were taught by us, either by word of mouth or by our letter." The Early Christians read this same verse and they understood that they must preserve all the oral and written traditions, even the ones not recorded in the New Testament (NT), oral traditions which they were aware of and spoke about. The Early Christians did not believe that the books of the NT had somehow miraculously sucked up all the oral traditions, so that this command from Paul had ceased to have any relevance once all the books of the NT were written. Instead, it was irrefutable to the Early Christians that there were unwritten doctrines and practices from the Apostles which had never been recorded and which all churches had professed since Apostolic times. The Protestant writer uses 2 Thessalonians 2:15 as though it is proof against Tradition, though ironically, Scripture and the Early Christians used it as proof for Tradition. This is because the context of this letter itself, which Protestants abuse, does not prove nor even suggest the concept of "inscripturation", the doctrine that every single Apostolic oral tradition became completely incorporated into Scripture. Paul simply mentions oral traditions of the Apostles and then, as 1 Corinthians 11:34 makes clear, he actually leaves behind certain doctrines to remain outside the Bible for oral transmission.
One of the most important things to remember when reading 2 Thessalonians 2:15 is the fact that Paul never teaches that the Apostolic oral Tradition, which was also called the Gospel, would one day cease to have relevance or would be completely incorporated into Scripture. Protestants insist on believing that every single oral doctrine from the Apostles had eventually become written down in Scripture, but the only way to believe this doctrine is to rely on teachings not recorded in Scripture, since the Bible does not make such statements. In fact, the only way to prove it is to force unbiblical interpretations into the Bible whenever it says something about a genuine oral Tradition from the Holy Spirit. In other words, Protestants must assert a strong man-made bias in assuming the meanings of certain Bible verses and then come up with fanciful explanations unheard of in Sacred History in order to make Apostolic Tradition in Scripture mean what they desire it to mean.
.
And as already noted before to folks (be it in
#765 or
#757 or
#761 and other places), people divorce themselves from the context of the Church when they avoid the Church as it said itself to be. At the end of the day,
people simply do not care for the Church nor trust the Church...
And all of that stems from how
one chooses to see the history of Scripture within the lens of tradition. Understanding the
Scribal culture and the way that even the Jews themselves had a very complicated cultural understanding of scripture which
developed over time - this helps in knowing the way
that Scripture cannot be divorced from Tradition (no matter how much people claim "Sola Scriptura" ) or not seen as a Tradition. There were always debate on the nature of Scripture in the time of the Apostles -
with differing canons used even then based on traditional differences. And the same dynamic applies today
Some things really are not that complicated - for the Scriptures are themselves a product of the oral tradition of the early Church, seeing that the gospels were preached orally, later being written down by the leading of the Holy Spirit - but even if wanting demonstration of where history has ve
rified the numerous connections between the Jewish culture (including Oral) and the Eastern traditions, even without the use of scripture, it doesn't take much. For reference:
There's no escaping where the Holy Scriptures, as interpreted by the Church, have the final say over any and all matters of faith and practice - even though they do not have the only say. (see 2 Thessalonians 2:13, 3:6-7; 1 Corinthians 11:1-2; 2 Timothy 2:1-2; 1 Timothy 3:14-15).
In context, immediately after referring to Scriptures authority in refuting the Gnostics, he offered no words saying "You must test tradition only by Scripture. Others have addressed the issue before when it comes to trying to claim St. Ireneaus believed in Sola Scriptura - as noted in
Shameless Popery: Did Irenaeus Believe in Sola Scriptura?. ...or
Contra Sola Scriptura (Part 2 of 4) | Orthodox-Reformed Bridge and
Irenaeus of Lyons: Contending for the Faith Once Delivered | Orthodox-Reformed Bridge. He saw Tradition and Scripture as equal and it'd be dishonest in using him to say otherwise past the practices he condoned of hj in the Church.