I taught theology for 16 years and some seminars since then. My area of specialization is the 2nd century church...
May God then help whoever you taught while lacking basic knowledge about the recognition of the New Testament canon in the 2nd century.
The new testament canon is represented almost in it's entirety by the Muratorian fragment of the 2nd century.
Which is also confirmed by every 2nd and 3rd century early church writing we have concerning what was scripture.
Tertullian, in the mid 2nd century, mentions or references almost every NT book in his writings. He also refers to the idea that there is already an existing and recognized body of scripture when he says Valentinus uses the "entire volume" of scripture yet still teaches lies by twisting the meaning of the words. He says this is contrast to Marcion, who has advanced his heresy by claiming three of the four gospels are not authentic, rejecting all letter's except Paul's, and rejecting all of the OT along with it. Marcion, by virtue of rejecting that which was already recognized, further demonstrates the idea that the early church already recognized a body of scripture that was considered canonical long before councils started issuing recorded decrees in the 4th and 5th centuries.
Any early church document of the 2nd century is going to be found to making quotes from or allusions to the canon we have today.
We have further book listings by those like Ireneous, Clement of Alexandria, Origin, and Eusebius (all prior to nicea), which match the canon we have today aside from a handful of differences in smaller letters.
The idea that the canon was not decided until the 4th or 5th century, because some council decreed it, is not true according to what historian shows us. History shows us that all the councils did was affirm what the churches had already known to be scripture long before the Council of Nicea.
Even if you want to quibble over a handful of books that may have been disputed (like 3 John or 2 Peter), as a whole the canon was already established before those councils - and in the cases of "disputed" books, they were already known and used on a wide scale.
It would be wrong to paint the impression that there were all these different gospels and letters floating freely around, which taught contradictory things, but they were all believed equally by the church - but then along comes the Roman church, in the 4th century, who starts making decrees about which ones are or not scripture based on a desire to craft the theology that is most desirable to them.
The truth is that, even if you were to remove the handful of disputed books, or add the handful of books that have reference to being read (like Shepherd of Hermas); the end result is that your theology of Jesus, salvation, and God's plan of redemption is going to remain completely unchanged - because of the large body of writings which we know were undisputed as recognized canon from a very early date.
So, you are going to have to do better than just offer personal insults, and please notice that I have not done this to you.
It wasn't meant to be an insult, but a simple statement of fact: You don't know what you're talking about when you try to claim that Christians did not have a set list of accepted scriptures prior to the 4th and 5th century.
The Law, all 613 of them, is not the same being referenced to Jesus' statement as "laws made by men", the latter of which were interpretations and applications of the Law, which all Jewish and Christian groups did and still do today.
This is where you're going wrong. You don't recognize in all this the key distinction I've tried to point out for you: What happens when someone takes the position of saying they have authority from God, by virtue of their position in a man made organization, to declare what the word of God means and how it must be applied?
To help you understand the difference, I posed a question to you, which you ignored:
Was the catholic church obeying God's law, or man's law, when they did all those things I listed?
You must not be aware that according to Rabbincal tradition, even to this day, that they claim God has delegated to the Rabbis the authority to make and interpret and apply God's law on His behalf. Which is why they spend most of their time in Yeshiva studying Rabbinical documents rather than the scriptures themselves.
That is what the Pharisees were doing when they made the word of God no effect by teaching the word of men as though it were authoritative, contradicting the word of God by the decrees of men. Jesus accused them of barring the way to salvation by their manmade teaching, preventing people from coming to a knowledge of God.
This is basically the same thing the Roman Catholic church did: Declaring they have authority, on behalf of God, to rule and make law, and declare what God's word means. Which is also why those who go to Catholic seminaries, like John Dominic Crossan, say it was years into their studies before they even opened the Bible. Prior to that they spent all their time studying what the Catholic church had historically taught or decreed. Even going back as far as Tyndale, he went through his Catholic seminary education having never been taught a thing from the Bible. It was only afterwards he started to read the Bible and realized the people needed to know what was in it.
You must recognize that there is a manifest difference, not just in intent, but in result, when comparing someone who says "I think God meant this, and believe you should abide by that" versus someone who says "God means this, I am God's authority on earth, because this man made institution says I am, and I will force you by man's power to obey what I decree".
Both the Pharisees and the Catholic church have done this.
Protestants, by definition, can't, because they believe the Bible is the final authority - not any man. And that's the distinction you're failing to realize.
And anytime you get a pastor/preacher who starts acting that way, they get labeled a cult. With good reason. They are trying to get people to submit to their control, following their words, rather than teaching submission to God's word.