1) Jesus named, "Wonderful" (Isa 9.6). This word is also defined, "Separate" many times. "The government on His shouders" means "separatism."
What are your sources for these proposed meanings?
2) "Come unto me" is a "separatist" message."
3) The labels "dogs" and "the dead", for the lost, indicate separatism for the saved.
4) Paul applied OT verse to his followers, "Come out from amomg them and be you separate."
The word "sanctified" carries the idea of being separate or dedicated to God. God's people need to be separate from the world and it's sinful ways.
5) Their was no "Unity Movement" in the NT. The Roman Catholic Church was founded on "Ecumenical Councils."
The council at Jerusalem (for apostles only), was about DIVISION.
The Jews said they would teach the law to the Jews. At the same time they recognized the authority of Paul to teach against the law to the Gentiles.
6) Verses about "unity" (such as Eph 4.4-6) were limited to "unity" of one congregation.
Ephesians 2:1 - 4:16 discusses the "unity" of God's people. Chapter 2 gets to the heart of the matter ... with the removal of the wall of partition between the Jews and Gentiles (i.e., the law of Moses), they were united into one people (i.e., fellow citizens in 2:19).
The council in Acts 15 included more than the apostles. Note verse 6.
7) Paul taught that teachers were to be raised in the local congregation.
"And the things that you have heard from me among many witnesses, commit these to faithful men who will be able to teach others also" - 2Tim 2.2.
This meant, "No foreigners in the congregation." Do not go to another congregation for teaching when you have it at home.
I beg to differ with your conclusion. Paul was an apostle, who received His teachings straight from the Lord per Galatians 1:11-12. Paul referred to His apostleship in the opening of his second epistle to Timothy (1:1). The idea is the Lord gave instruction to Paul, Paul then taught Timothy, and Timothy would teach others, who would teach others. Thus, they all would be teaching the same things.
Following the events in Acts 2, the gospel spread per the "apostles' doctrine" in 2:42, and spread as the disciples carried the same teaching into Samaria and Judea (8:1), and then to the rest of the world beginning in 13:2. If what you say is true, the church would never have spread beyond Jerusalem.
3) John wrote against teachers.
"But the anointing which you have received from Him remains in you, and you do not need that anyone teach you; but as the same anointing teaches you concerning all things, and is true, and is not a lie, and just as it has taught you, you will remain in Him" - First John 2.27.
This meaning, "No foreigners in the congregation!"
Verse 26 sets the context for the next verse: "... Concerning those who try to deceive you." In essence, the thought is not to stray from what they know to be the truth. Note Acts 20:30. False teachers can arise from "within" a church - even from among the elders. Therefore, the issue isn't whether the teacher came from within or outside of a certain church, but whether or not the message they brought harmonized with the apostles' teachings.
NOTE: This referred to, "The Gift of the Holy Spirit"; which is gone today (1Cor 13.8-10). But we are not in the OT today, as the apostles were (1Cor 9.20-21). We are in the New Covenant kingdom of God, New Jerusalem, with the 7 Spirits of God (Rev 5.12, 7.12).
Following Jesus' death per Hebrews 9:16-17, Jesus' will or testament (the New Testament) was established. In light of the imagery used in Hebrews 9, I think of the sermon in Acts 2 as the reading of Jesus' will. Paul was a Jew. Therefore, he could relate to the Jews. However, he also could relate to the Gentiles. That's his point in 1 Cor. 9:20-21. It wasn't that he was still under the old law.
The Pope teaches OT, that kingdom of God was Pentecost.
Paul taught "inherit the kingdom of God."
Jesus taught, "the age to come" (Mt 12.31-32). This was in "10 Days" (Rev 2.10); AD 67-77.
This was dated from murder of "Antipas" (Rev 2.13); which was recorded by Josephus.
I disagree with your logic. True, the kingdom was promised during O.T. times (i.e., 2 Samuel 7), but the kingdom or church Jesus promised to build was that same kingdom. It's why Jesus is introduced as the "son of David" in Matthew 1:1. That's a reference to the promise God made to David in 2 Samuel 7 (see also Romans 1:1-4). Note Colossians 1:13 (approximately A.D. 62). Sinners were being translated out of darkness (i.e., sin) into the kingdom - which is the only kingdom God promised to build.
"He (Little Horn = Papacy) thinks to change ties and law" - Dan 7.25.
"You cannot drink the cup of the Lord and the cup of demons; you cannot partake of the Lord's table and of the table of demons" - 1 Cor 10.21.
Separatism is from the Lord Jesus.
Ecumenical Councils are from the Papacy.
wmssid
No doubt, the Lord instructs His people to be holy and special (NKJV - 1 Peter 2:9), which means they will be separate from the world if they are faithful.
Granted, councils such as those observed under Catholicism and Protestantism are divisive. "Unity" is obtained by appealing to God's word and applying it to our lives, not by the decrees of men.