"However, when you wish to convey your most important thoughts you WRITE THEM DOWN. Which is exactly what the writers of the New Testament did, wrote down the most important topics."
Funny how the missed the bit about eliminating the Saturday Sabbath, one of the 10 Commandments and mentioned hundreds of times in Scriptures, and REPLACING it with worship on the day of the Resurrection. They mention The Lord's Day, and their meeting, but they seem to have left out the part about how the hundreds of passages in the Scriptures about honoring the Sabbath, and one of the Ten Commandments themselves, was superseded and rendered obsolete by Jesus.
Jesus didn't say to work on the Sabbath. He pointed out circumstances in which it was good to do mitzvot on the sabbath that the oral tradition had fenced off, such as healing the sick. This was not work. But he never cancelled the Sabbath. And neither did anybody else think to write down to cancel it (that IS in the Didache, and First Century, but the Didache isn't in the Bible, so doesn't count).
Funny how Christians all ignore hundreds of passages of Scripture and do not honor the Sabbath day, do not keep it holy, work and shop on the Sabbath day, but have no Scriptural authority that either directly cancels the Sabbath nor moves it. Meet on the Lord's Day too? Oh indeed! That is good! But where does the Bible CANCEL the Sabbath, or say that The Lord's Day is NOW the Sabbath? It doesn't. Sunday worship and the abrogation of the Saturday Sabbath dates from the First Century, but it didn't get written into the Bible, and it DEFIES what it written in the Bible.
I presume that you will all now abolish your idolatrous tradition and go back to keeping the Sabbath Day - the SEVENTH day - Holy?
Yes?
Conversely, the Apostles DID write down what Jesus said about divorce: he absolutely FORBADE it, except in the narrow case of "pornea" (lewd conduct by the female spouse). He said that he who divorces and remarries commits adultery.
So, does your Church have a tradition that absolutely prohibits divorce and remarriage, except in the case of female adultery?
No?
The we have a case of your Church establishing a tradition that directly defies Scripture and the Bible. In that case, Jesus even mentioned the reason WHY your Church has deviated from the law of God: for the same reason Moses did - the hardness of your heart.
So, if the standard is WRITTEN DOWN, it is curious that your Church both goes TOO FAR, but having a Sunday worship that is NOT written down but a Saturday Sabbath that IS...and is not kept, and not far enough, by ignoring Jesus' utter prohibition on divorce and remarriage.
Given that you are quite directly defying God's Infallible Word on both cases, in your church, you would be best to worry about this plank in your own church's eye before niggling about the motes you perceive in the eyes of Orthodoxy and Catholicism.
Peace.